Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you Sturdy material: these bath bomb molds are made of aluminum alloy material, which is sturdy and won't break easily, can be applied for DIY bath bombs making and food making, they are also easy to wash and convenient to use; Before using, please wash the mold with baking soda or washing up liquidDIY making time: if you stay at home at weekends, just take out these metal bath bomb crafting molds to DIY, invite your family members join you together, to make bath bombs or some delicate pastries by your own hands and enjoy the weekend, show your cooking skills and novel ideas, harvest fun with family or kidsAssorted usages: with our bath bomb making supplies, you can not only create practical bath bombs for your own daily use, also make food like cake, pastries and other desserts in round ball shape, satisfying your DIY needsConsiderate gifts: you can prepare the metal bath bomb making mold as a considerate gift for your mom, neighbors, friends who love dessert or food making, or you can make the bath bombs with the mold and take finished crafts as gifts for your family membersWhat you get: package arrives with 8 pieces bath bomb molds inside, totally 4 sets, each piece is designed with proper size that allows your daily cooking needs, and appropriate size and ample quantity supports your molding and crafting needs