MATERIAL & QUALITY: The silicone molds are made of durable silicone, very flexible, easy to demold and recyclable. These resin casting molds help keep the resin product in precise, transparent, smooth and mirror shine surface. SIMPLE TO : silicone resin mold is smooth and clear, easy to unmold and barely requires polishing. Simply add resin and other resin decor into the mold, then push the other side of the mold and resin comes out smoothly when it's cured. DIY PERSONLIZED COASTERS: It can be used as a special and unique gift to your lovers and . Enjoy your ! IMPORTANT NOTICE: 1) The coaster molds set are suitable for casting resin only, not for coating resin. 2) Do not torch or heat tobubbles while resin in the molds, it will damage the silicone molds for . Colour:transparent white Material:Silica Size:9cm in diameter Package Contents: 4 * Coaster Resin Mold Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.