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

Product ID: 318896364

Details

Brand
MJR Tumblers
Grit material
Aluminum Oxide
Grit type
Coarse
Item dimensions L x W x H
20.3 x 15.2 x
Material
Aluminum Oxide

⏳7-day polish cycle for flawless shine

🪨Optimized for 3 LB rock tumblers

⚙️4-step precision grit system

R1108

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Elevate your rock game with precision grit power! ⚙️

MULTI STAGE GRIT MASTERY - Four distinct grit grades (60/90, 120/220, 500/600, 1200) for progressive, professional polishing
TAILORED FOR 3 LB TUMBLERS - Perfectly portioned quantities to maximize efficiency and minimize waste
EXTENDED POLISH CYCLE READY - Designed to deliver showroom-worthy polish after a dedicated 7-day tumbling process
PROVEN RESULTS WITH 1 000 REVIEWS - Trusted by a growing community of rock tumblers with a 4.4-star rating
PREMIUM SILICON CARBIDE ALUMINUM OXIDE BLEND - High-quality abrasive media engineered for superior stone smoothing and shine

The MJR Tumblers Refill Grit Kit is a meticulously calibrated 4-step abrasive system featuring silicon carbide and aluminum oxide media, optimized for 3 LB rock tumblers. It includes graded granules from coarse to ultra-fine polish, ensuring professional-grade smoothing and shine. Backed by over 1,000 positive reviews, this kit is engineered for serious hobbyists seeking flawless, showroom-quality results in their tumbling projects.

Specifications

ASIN	B07DZ54NQN
Brand Name	MJR Tumblers
Compatible Material	Stone
Customer Reviews	4.4 4.4 out of 5 stars (1,033)
Grit Material Type	Aluminum Oxide
Grit Number	12000
Grit Type	Coarse
Item Dimensions	20.3 x 15.2 x 1 centimeters
Item Weight	0.56 Pounds
Manufacturer	MJR Tumblers
Material Type	Aluminum Oxide Silicon Carbide Plastic Pellets
Model	MJR3pgk
Number of Items	4
Part Number	MJR3pgk
Set Name	Where

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R1108

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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