Home / Toys & Games / C1 Rock Tumbler, Large 2.5LB Capacity with 4LB Rock Tumbler Grit and Polish Refill Media Kit

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C1 Rock Tumbler, Large 2.5LB Capacity with 4LB Rock Tumbler Grit and Polish Refill Media Kit

-23% $ 79 .75 $102.96

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Description

KoolStone C1 Series – Trusted by Beginners, Backed by Experts. Start your rock tumbling journey with KoolStone, the brand trusted by thousands of families and hobbyists. The C1 Rock Tumbler is a classic model that balances reliable performance with all-in-one convenience. From the classic C1 to the Pro, Pro Max, and Pro Ultra, KoolStone continues to evolve with exclusive designs and upgraded performance for every rock enthusiast — ready to start your rock tumbling journey.

START A TUMBLING JOURNEY -- C1 Rock Tumbler turn rough rocks into polished gems, then you will be very excited to see the stones change with each cycle. That's a fun process of rock tumbling and a family little project for parent-child endeavor.

2.5LB LARGE CAPACITY & 75% QUIETER -- The updated KoolStone Rock Tumbler features a large 2.5LB barrel, perfect for polishing multiple stones in one batch. Holds more rocks than most beginner tumblers. The rubber barrel is 75% quieter than typical plastic barrels, making it ideal for home or classroom use.

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100+ sold last month

Dan&Darci

Lowest ever

Amazon

HopeRock Ultra Quiet Rock Tumbler for Adults, Kids 8+, STEM Science Kit | Noise Reduction Cover, 3 Speed Settings, 9 Day Timer, Polishing Supplies, STEM Geology Activity, Beginner Friendly, Green

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$39 .99 $49.99

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Amazon

40 lbs Rocks for Outdoor Landscaping, 2-3" Decorative Planter Rocks | Aquarium Rocks for Fish Tank, Natural Garden Stone for Plants, Flower Pots, Vase, Walkways, Yard

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$46 .39 $57.99

Amazon

Rock Tumbler Double Drum 6LB Lapidary Polisher

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$89 .99 $99.99

Amazon

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$44 .95 $49.95

Amazon

C5 Starter Rock Tumbler Kit - Durable Leak-Proof Rock Polisher - Complete Rock Tumbling Kit with 4 Pounds Rock Tumbler Grit Kit

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$66 .53 $71.47

Lowest ever

Amazon

8000 Grit Aluminum Oxide Rock Tumbler Polish 5 LBS, Step 5 Final Refill | High Gloss Polishing Powder for Rocks, Gems, Glass & JeweFinishing, Large Refill for All Rock Tumblers

-5%

$43 .65 $45.98

Amazon

K4 Quiet Rock Tumbler Kit for Adults, 7LB Large Double-Barrel | Professional Brushless Polisher with Noise-Reducing Cover, Complete Kit, STEM Gift For All Ages

-25%

$149 .98 $199.99

300+ sold last month

Amazon

Rock Tumbling Grit and Polish, 6 LB 4-Step Rock Tumbler Grit Kit | 60/150/600/1200 Rock Polishing Grit, Silicon Carbide And Aluminum Oxide, Polishes 40 Lbs, Fits Any Tumblers, Best Value Kit

-20%

$31 .98 $39.98

100+ sold last month

Amazon

G2 Dual-Barrel Professional Rock Tumbler Kit, 8LB for Adults | Brushless 8Lb (4LBx2) Rock Polisher, Heavy-Duty Metal Base, 3 Speeds, 9-Day Timer, for Big-Batch Rock Polishing

-19%

$169 .98 $209.99

100+ sold last month

Amazon

Rock Tumbler Grit Kit, 4LB Rock Polishing Grit & Ceramic Media | 4-Step 60/150/600/1200 Rock Tumbling Grit & Polish Refill, Ceramic Tumbling Media For Rock Polishers, Up To 25 Lbs of Rocks

-14%

$28 .48 $32.98

300+ sold last month

Amazon

40lbs Black Pebbles Mulch for Landscaping, 1-2 Inch High Polished Natural River Rocks for Plants, Decorative Stones Garden Outdoor and Indoor DIY Vase Filler Fish Tank Aquariums

-6%

$89 .99 $95.61

Amazon

25000 Grit Rock Tumbler Polish 5 LBS– Ultra Fine Aluminum Oxide Final Stage Powder, Step 5 Polishing Grit for Lapidary, Gemstone, Rock & Glass Surface Finishing, for Rotary & Vibratory Tumblers

-5%

$56 .98 $59.98

Amazon

45 LB Mexican Beach Pebbles, 0.4-1 Inch Natural Unpolished Bulk Rocks, Decorative River Rocks for Landscaping Garden Paving Plant, Rocks for Walkways and Outdoor Decorative Stone, Grey

-5%

$62 .57 $65.87

Lowest ever

Walmart

Hot Bee Rock Tumbler Polisher Science Kits Set for Kids and Adults, Tumbler Grits, Rocks & Jewelry Polishing Accessories Set for Beginner

-17%

$49 .99 $59.99

Lowest ever

Amazon

C1 Pro Ultra Brushless Rock Tumbler Kit - Double Barrel for Extra Large 7LB Capacity, with 4 Pounds Rock Tumbler Grit Kit

-26%

$171 .35 $232.97

Amazon

C1 Pro Ultra Brushless Rock Tumbler Kit - Double Barrel for Extra Large 7LB Capacity, with 10 Pounds Rock Tumbler Grit Kit

-25%

$182 .22 $242.97

Amazon

2lbs River Rocks, 2/5''-4/5'' Small Pebbles, Decorative Stones (32oz,Mixed) | Pre-Water-Washed, Hand-Picked, for Indoor Plants, Fish Tank, Vases, Succulents, Terrarium (Approx 80-90 Rocks per 2 Lbs)

-23%

$9 .99 $12.99

Amazon

A1 Pro Brushless Rock Tumbler Kit - Double Barrel for Large 8LB Capacity, Adjustable Speed & Timer, Durable Metal Base for Adults & Rock Collectors – Includes Full Accessories

-15%

$169 .99 $199.99

100+ sold last month

Lowest ever

Amazon

1.5LB 12000 Grit Aluminum Oxide for Final Finish, Step 5 Advanced Polishing Tumbling Filler,Rock Tumbler Polish for Micron Finish

-15%

$21 .99 $25.99

Amazon

Rock Tumbler Grit and Ceramic Tumbling Media 4 Pounds, Polish Up to 25 lbs. of Rocks, 4-Step Polish Refill Media Kit, Compatible with All Rock Tumblers, Essential Polishing Kit for Adults

-14%

$28 .48 $32.98

300+ sold last month

Lowest ever

Amazon

50000 Grit Aluminum Oxide Rock Tumbler Polish, Step 7 Ultimate Finish | Maximum Refinement for Rocks, Gems, Glass & Jewelry Making, Ultra-Fine Powder, 1 LB Refill, For All Major Tumblers

-10%

$36 .88 $40.98

Amazon

Calofulston 15LB River Rocks for Plants, Decorative Polished Stones for Garden Landscaping, Planters, Indoor and Outdoor Decor, Mixed Color, 1-1 3/4 Inch

-14%

$27 .59 $31.99

100+ sold last month

Amazon

-13%

$12 .99 $14.95

Amazon

2.5lb Natural River Rocks for Plants & Decor, 3/8 Inch | Natural River Rocks, Polished Finish, Multi-Color Mix, Ideal for Succulent Top Dressing, Vase Filler, DIY Crafts

-9%

$9 .99 $10.99

Amazon

K2 Rock Tumbler Kit+ 4 LB Rock Tumbler Grit Kit

-8%

$125 .47 $136.46

Amazon

-5%

$27 .53 $28.98

Amazon

Rock Tumbler Grit Step 3, 600 Grit Silicon Carbide Fine Media Refill 5LB | Pre-Polishing For Rock Tumbling, Reduces Fine Surface Marks, Creates The Ideal Base For Step 4 Final Polish, Smoother Finish

-5%

$28 .48 $29.98

Lowest ever

Amazon

30000 Grit Aluminum Oxide Rock Tumbler Polish, Step 6 Ultra-Fine Polish | Advanced Refinement for Rocks, Gems, Glass & Jewelry Making, Ultra-Fine Powder, 1 LB Refill, For All Major Tumblers

-10%

$32 .38 $35.98

Lowest ever

Amazon

Professional Rock Tumbler Kit,3-Speed Motor & 7-Day Timer | Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Operating Instruction, Great Stem Science Kit

-6%

$33 .99 $35.99

Amazon

-5%

$28 .48 $29.98

100+ sold last month

Amazon

Decorative River Rocks & Landscaping Pebbles for Potted Plants | Smooth Polished Pebbles for DIY Resin Art, Vase Fillers, Aquarium Gravel, and Potted Plants(Black, 5 Pounds)

-5%

$11 .82 $12.45

Lowest ever

Macy’s

Mindblown Motorized Rock Tumbler Set, Ages 8+

-50%

$19 .99 $39.99

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Chunky Yarn for Crocheting/Arm Knitting Jumbo PurplishBlue | Knit Blanket Yarn. Choose 2/6/8/12-pack: 8.5 oz each, 32 yds chenille. No splitting. Machine washable.

-5%

$28 .49 $29.99

VATENIC Baby Toys 6-12 Months Touch and Walk Music Light Baby Crawling Toys（6.7"x5.12"x4"）, Dinosaur Toys 12-18 Months Gift Toys 1 Year Old Boys Gifts Girl Toys, Toddler Boys 1-2 years old baby gifts

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Walmart

VATENIC Baby Toys 6-12 Months Touch and Walk Music Light Baby Crawling Toys（6.7"x5.12"x4"）, Dinosaur Toys 12-18 Months Gift Toys 1 Year Old Boys Gifts Girl Toys, Toddler Boys 1-2 years old baby gifts

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$15 .99 $17.99

topjuju 25 Pcs Miniatures Fairy Garden Accessories, Mini Resin Fairy Figurines, Cute Tiny Hedgehogs Mushroom Bridge for DIY Home Outdoor Micro Landscape Terrarium Ornaments

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Walmart

topjuju 25 Pcs Miniatures Fairy Garden Accessories, Mini Resin Fairy Figurines, Cute Tiny Hedgehogs Mushroom Bridge for DIY Home Outdoor Micro Landscape Terrarium Ornaments

-35%

$12 .99 $19.99

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Animal Magnetic Blocks 100-Piece Building Set, Ages 3-12

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$39 .99 $49.99

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Amazon

Magnetic Tiles Unicorn Toys with Train, 2 Princess & 2 Unicorns Figures

-63% Promo Code

$14 .99 $39.99

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Amazon

Axquilon 3 Pack Horse Diamond Art Kits for Adults 12x12 inch | Diamond Painting Kits for Adults Beginner, DIY 5D Full Drill Gem Art for Home Wall Decor

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$7 .99 $9.99