Komestone

K1 Rock Tumbler Kit – Reliable Rotary Rock Polisher for Adults, Beginners & Hobbyists, 2.5LB Quiet Rubber Barrel with 3 Speeds, 9-Day Timer & Memory Function, Full Accessories Included, Ideal Gift

Free shipping with 3 or more products in your cart
Payflex: Pay in 4 interest-free payments of R755.00. Read the FAQ
R 3,732 19% off Limited time offer
R 3,020
In stock
Duties, insurance and VAT included
Delivered in 10–20 working days —
Free shipping with 3 or more products in your cart
Secure checkout
Your payment is fully protected
Duties & VAT included
No surprise charges at the door
Tracked delivery
Track your order end to end
Returns support
30-day return window

Description

  • Ranked #1 By NBC's Today, BestReviews & More — Trusted By Thousands Of Hobbyists — The KomeStone K1 was independently ranked the #1 Rock Tumbler by leading review publications including NBC's Today, BestReviews, BuyerGuide, and more — recognized for performance, reliability, and value. Trusted by thousands of adults, hobbyists, and families who want a dependable tumbler that delivers real results.
  • Quiet Enough For Home, Apartment & Hobby Room Use — The K1's 100% soft rubber barrel absorbs impact for 75% quieter operation — similar to a running dishwasher. Tumble rocks in your living room, hobby space, or apartment without disturbing anyone around you. Quiet, reliable, and built for everyday home use.
  • LCD Screen, 9-Day Timer & Memory Function — Set It And Walk Away — Features a built-in LCD display, 9-day programmable timer with automatic shutoff, 3-speed controls, and a memory function that automatically resumes your cycle after any power interruption. Set your stage, walk away, and come back to perfectly tumbled stones.
  • 2.5LB Large Capacity — Polish More Rocks In Every Batch — The extra-large 2.5LB rubber barrel lets you polish 2.5× more rocks than standard 1LB barrels — ideal for adult hobbyists and collectors who want serious results. Perfect for processing agates, jasper, quartz, gemstones, sea glass, glass, coins. Just load, set, and enjoy the transformation.
  • Complete Kit — Everything You Need To Start Today — Includes the tumbler, 2.5LB rubber barrel, 1LB rough rocks (9 types), 4 polishing grits, ceramic media, sifter, jewelry fastenings, 2 spare belts, and a full-color illustrated guidebook. No extra purchases needed — unbox and start tumbling on day one. Makes a complete, ready-to-use geology or STEM gift for adults, teens, and rock enthusiasts.
  • Proven 4-Stage Grit System + Pro Tips Guidebook — Includes a complete 4-stage grit kit (60/120/150/1200) with precision ceramic media and a leak-proof stainless-steel lid for mess-free tumbling. Our exclusive full-color guidebook covers step-by-step techniques — including pro tips like adding soap water during polishing stages — to help you get the best results from every batch.
  • Easy Maintenance — User-Replaceable Drive Belt — The K1's durable drive belt is designed to be user-replaceable — no special tools, no service calls. Simple maintenance keeps your tumbler running longer and your hobby uninterrupted.
  • ??-??? ?????-???? ????????? & ?-???? ???????? — ????-???? ???????? — Shop with complete confidence. Your K1 is backed by a 90-day satisfaction guarantee and a 1-year warranty. Miss Amazon's return window? Our US-based customer service team offers 24/7 hassle-free replacement or refund support — we've got you covered.
Technical Specifications
Manufacturer
KomeStone
Model
K1
Color
Black
Size
Large
Height
14.5 cm
Length
28.5 cm
Width
22.9 cm
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.