About this product:Set of bath bomb molds, 6 x diameter: 6.5 cm DIY mold, 6 x diameter 5.5 cm DIY mold, 6 x diameter 4.5 cm DIY mold.The bath bomb shape is made of high quality aluminum, won’t bend, dent, rust or break.Aluminum cans are lightweight, easy to handle and use. After bath bomb making is complete, the molds are easy to wash and dry.Bath salt ball molds can be used not only for DIY bath bombs, but also for molding foods: jelly, chocolate, cheese, mousse, pudding, etc.bath is a cool gift idea that can make the gift you want for your kids, friends, elders, affordable and creative, a unique gift for adults and children.