Numberblocks
✓Price
$66.72
NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit - Rock Tumbling Supplies including Grit and Polish Refills, Ceramic Media, GemFoam, 1.36 kg Madagascar Rocks for Tumbling, Jewellery Accessories
★★★★★
$66.72
Quantity
1
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About this item
- POLISH INCREDIBLE ROCKS FROM MADAGASCAR - You'll have plenty of tumbling to do with 1.36 kilograms of rocks from Madagascar. This rock refill pack can include rose quartz, jasper, and more. It's an awesome assortment of rocks you will treasure forever!
- HIGH QUALITY – This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on approximately 4 kilograms of rocks, gems, glass, and more
- IMPROVE YOUR ROCK TUMBLING RESULTS – Ceramic tumbler media makes the entire rock tumbling process more effective, improving delivery of rock tumbling grit, quieting tumbler noise, reducing rock breakage, and acting as a filler for smaller batches
- BRAND NEW WAY TO MAKE TUMBLED ROCKS SHINE – GemFoam is a unique new rock polisher media that gives unprecedented shine to tumbled rocks. Just add the patent-pending rock polishing media to your tumbler after the final grit cycle for great results!
- HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!
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Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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