Silicone Material- These silicone moulds are very flexible and easy to clean, make it reusable, with the transparent appearance, you can check the bottom when process project. Starter Kit- The perfect combination for making resin jewelry, resin charm. These resin molds have a variety of shapes and designs, suitable for earrings, pendant, necklace, bracelets etc DIY making. A must-have Kit for the jewelry DIY lover or handicraft or the newbie to the resin, you could make your unique Christmas, birthday. How to use- it is recommended to add a drop of alcohol during the preparation, when you release the item out of the mold, just twist the mold. The piece can be easily push out, after using, easy to wash and clean with soap and water, and please put them away from dust after washing. Wide Application- these resin casting molds are compatible with most resins or other casting material such as epoxy resin, UV resin, polyester resins etc. You can add some pigment, resin dye and embed different kinds of embellishments or fillers, perfect for making jewellery, charms, earrings, pendant, bracelet, bangle etc. Happy hour- suitable for many DIY handworks, such as earrings, necklace, jewelry pendant and so on, then you can send them to your families or share your craftsmanship with your friends and family, enjoy happy times.