White Ceramic Grinding Balls - Size: 20mm - Weight: 1kg - Milling Media for Ball Mill - by Inoxia

Despite Fedex. Lying about the delivery, the product is slightly better than perfect. Customer service performed well, so that's a double positive (5+5 = 10).

O wow very wonderful don't make Sparks in my tumbler I have no problems whatsoever with any chemicals it's number one, n adding the Lortone tumbler from Amazon makes the very safest way to do that now your going to spend a few dollars on that around 150.00 dollars ya you could get by cheaper n I wanted the safest way because my body parts mean alot to me I have been doing this since 1982 n has grown way bigger n better n safety is my number one goal over family n friends n loved ones you have to remember how important safety is I take safety to my hole heart,Soul, n life n the people around me as my hobby grows from the years ago more n more I need to always understand what's happening around me at all times as my hobby grows stronger with safety Always AMEN Terry

Appeared powdery on arrival, but don't be alarmed by this. They are very durable non-powdery. Did a variety of test on strength durability.- high impact test- drop test- velocity impact test- stress testThese are as strong as steel (or at least close enough)Only thing is that they are not consistent in shape, but still they are very good

Worked well for a small batch of home made gunpowder. I used a ball mill.

Came as described.

Great product, works as described. Shipping took FOREVER though.