Hobby Rock Tumbler


From Discover with Dr Cool – Turn rough stones into polished gems with this powerful tumbling machine! For ages 8 yrs-teen, from Discover with Dr Cool.

Availability: In stock

Product price
Additional options total:
Order total:
SKU: 043693 Categories: , , Tag:
  • COMPLETE ROCK TUMBLING KIT – Includes tumbler and barrel, half pound of gemstones (9 different types), polishing grit (4 grades), jewelry fastenings, learning guide, and instructions
  • DURABLE QUALITY – Backed by our 2-year warranty, this metal base and high-powered motor give you a workhorse machine that will last for years
  • NOISE-REDUCING BARREL – Features a noise-reducing rubber barrel with stainless steel lid that is both leak-proof and much quieter than plastic barrels
  • SET IT AND FORGET IT – This easy-to-use tumbler has a programmable timer, giving you bigger results with less energy while never over-tumbling your rocks
  • 100% SATISFACTION GUARANTEE – Includes 2-year warranty. Join the millions of parents who have chosen our award-winning science toys

I always wanted to try polishing my own rocks, I just never knew where to start. This IS the perfect place to begin! I have become so inspired! The product itself is very simple to use and effective.  -Sylvie

Manufacturer SKUHTUMB


The Good Toy Group

Age Ranges

Big Kids, Tweens, Teens

Safety Warnings

WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.