... .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 wire ... in cleaning pots, pans, ovens, dishes, glass wares, sinks, tiles, bath tubs, machine parts, tools, etc. Especially they are more effective ...