Form Set, 6 x Diameter: 6.5 cm DIY mold, 6 x 5.5 cm DIY mold, 6 x 4.5 cm DIY mold. The bath bomb mold is made of high-quality aluminum, will not bend, dent, rust or break.The aluminum molds are lightweight, easy to handle and use.After making the bath bomb, the molds are easy to wash and dry.Bath salt molds can be used not only for DIY bath bombs, but also for food shaping: jelly, chocolate, cheese, mousse, pudding, etc.The mold set is a cool gift idea that can make any gift you want for your children, friends, elders, affordable and creative, unique gift for adults and children.