1. MATERIAL: these resin moulds are made of quality soft silicone, reusable and flexible high mirror effect, which can resile instantly after pull or pinch the mold processing is delicate, the inside is smooth, so the products are smooth and flat, will not appear uneven, product translucent, you can clearly view the inside of these moulds, easy to use and clean.2. SIZE: large Internal diameter:10.4cm. Easy to release, the resin is clear and shinny comes out of the mold.3. WIDE APPLICATION: These large resin molds are compatible with most resins or other casting materials such as epoxy resin, polyester resins, etc. Manufacture unique Roman numeral clocks, two sizes, can meet different needs, let friends praise.4. GREAT GIFT: Great molds for making decorative ornaments. You also can add a dry flower, pearl pigment, mica powder, glow in the dark powder, glitter and sequins into the resin mold to get a colorful mold. Great gift for yourself, families, friends or anyone likes crafts project, or you could make your unique Christmas, birthday, new year gifts for your friends and family.5. EASY to De-MOLD: Smooth interior makes it easy to de-mold after its fully cured and reduces the need to cut back and polish. Or you can use soap water which may help extend silicone mold's life.