Hazel Tumbling Media is sized to 18/40 media. We specifically size our products for any brass tumbling or blasting medium use. Our shell is dust free and extremely clean. Hazel Tumbling Media is available in 10 lb. bags. Benefits for using Hazel Tumbling Media​:​ ​ Cleans/Shines Brass Product​ Can be Reused in Tumblers more than once before neeing to replace media material 100% Hazelnut Shells 100% Up-cycled material from Hazelnut Shells. Contains: If you have a tree-nut allergen this product is a by-product of a tree-nut allergen (hazelnuts) and may contain hazelnut residue. This product is not intended for human consumption. walnut shell media | corn cob media | corn cob media for tumbler