Can you use this for a 1 lb National Geographic tumbler

It should work just fine. This is just the grit and the grit is usable in any tumbler.

After the polish, are the rocks glossy and shiny?

They won't be as shiny as you think. The grit polish the rocks so try are smooth but there is a fifth stage in rock polishing called burnishing that you have to do at the end. Search the internet on directions but it involves tumbling them in soap like borax. Also, if you want your rocks to look good you have to get the ceramic filler pellets to even out the tumbles. Plastic doesn't do the trick like ceramic. Filler pellets vs no filler pellets is a big difference on helping the rocks get shiny.

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Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish

Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish

Product ID: 407853171

Details

Brand
MJR Tumblers
Grit Material
Aluminum Oxide
Grit Type
Medium
Item dimensions L x W x H
20.3 x 15.2 x
Material
Aluminum Oxide

🔬Ultra-fine 12,000 grit aluminum oxide polish

⚙️Precision graded silicon carbide grit

🇺🇸Proudly USA made, veteran-owned brand

295.91 DT

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Description

✨ Elevate your rock tumbling game to pro-level polish perfection!

MULTI STAGE GRIT SYSTEM - Four-step polishing for flawless rock finishes
EXTREME 12 000 GRIT POLISH - Sub-micron aluminum oxide for mirror-like shine
PERFECT FIT FOR 3 LB TUMBLERS - Tailored quantities ensure no waste, max efficiency
PREMIUM SILICON CARBIDE MEDIA - Optimized 60/90, 120/220, and 500/600 grit blends for progressive smoothing
TRUSTED VETERAN OWNED QUALITY - Support a brand with integrity and American craftsmanship

This MJR Tumblers Refill Grit Kit is engineered for 3 lb rock tumblers, featuring a precise four-step system with graded silicon carbide grit and a premium 12,000 grit aluminum oxide polish. Designed for progressive smoothing and ultimate shine, it’s a veteran-owned, USA-made solution that guarantees professional-grade results every time.

Specifications

ASIN	B07DZ54NQN
Best Sellers Rank	#417,023 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #1,201 in Household Cleaning Metal Polish
Brand Name	MJR Tumblers
Compatible Material	Aluminum Oxide; Silicon Carbide
Customer Reviews	4.3 4.3 out of 5 stars (487)
Grit Material Type	Aluminum Oxide,Silicon Carbide
Grit Number	12000
Grit Type	Medium
Item Dimensions	20.3 x 15.2 x 1 Centimeters
Item Type Name	MJR Tumblers Refill Grit Kit for 3 LB Rock Tumblers Silicon Carbide Aluminum Oxide Media Polish
Item Weight	254 g
Manufacturer	MJR Tumblers
Material Type	Aluminum Oxide Silicon Carbide Plastic Pellets
Model Number	MJR3pgk
Number of Items	4
Part Number	MJR3pgk
Unit Count	4.0 Count

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295.91 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

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