... .gram:from10g to 80g per ball 2.not hurt your hand, not causing any scratch ... of the surface stainless steel scourer ball :1. Made of Nylon, stainless steel, mesh spong,Galvanized ... cleaning pots, pans, ovens, dishes, glass wares, sinks, tiles, bath tubs, machine parts, tools, etc. Especially they are more effective ... "low-carbon life" to the world. stainless steel scourer ball