Advanced Professional Rock Tumbler Kit - with Digital 9-day Polishing timer & 3 speed settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy

Rock Tumbler Grit for 3 Pound Tumbler by RTumbler Professional Grade Rock Polishing Grit

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Complete Kit - 4 Premeasured Packs, Includes Easy to Follow Instructions For Use In All 3lb Tumblers

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Complete Kit - 4 Premeasured Packs, Includes Easy to Follow Instructions For Use In All 3lb Tumblers

Complete Kit - 4 Pre-measured Packs, Includes Easy to Follow Instructions
3 ounces 60/90 Coarse Silicon Carbide Grit
3 ounces 120/220 Medium Silicon Carbide
1.5 ounces 500 Fine (pre polish) Silicon Carbide Grit
1.5 ounces 1200 Aluminum Oxide Polish

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Advanced Professional Rock Tumbler Kit - with Digital 9-day Polishing timer & 3 speed settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy