Jewelry making kit for 3D gem, necklace pendant, crystal, jewels, keychain charm, multi shaped gemstone, earrings etc. Use with modelling clay (air clay, paper clay, resin clay, polyclay, polymer clay, salt clay, metal clay, liquid clay etc.), resin(epoxy resin, rethane resin, uv resin, polyester resin), concrete, cement, gypsum, plaster, hot glue, soap, candle, wax, mix media and more. Can also be used with food material such as ice, gum paste, jelly, marzipan, fondant, sugarpaste, melted candy & chocolate etc. Durable and transparent soft mold, you can check the buttom when process project. Easy to demold, shiny finish. Demolding tips: Add baby oil or butter to mold till resin dried, twist it then figurine will pop out Food Grade. Food and Non Food material should use separately. Wash and boil before use, especially for food. Suffer temperature between -40~220 centigrade / -40~428 fahrenheit, used with most materials for baking and crafting. Easy to use mold very flexible and easy to clean, can be used in oven, dishwasher, refrigerator etc. Tip: Wash in warm soapy water, and they will last for years Shape: peach heart square oval Size: 25.4*16.1*1.3cm Weight: about 105g Color: transparent color Material: grade material room temperature heat-resistant 240 degrees to -60 degrees silicone Package includes: 1pc * mold