[Coaster Design]these casting molds are condensation edge, so it is not only for decoration, but also be very practical working for glasses. [Silicone Material]these resin molds are very flexible and easy to clean, reusable, with the transparent appearance, you can check the bottom when process project. [Easy to Release]after your project is fully cured, just twist the mold, the piece can be easily push out. [Wide Application]these silicone 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. [Notice]Please store the resin molds in room temperature place, avoid from the direct sunlight. Clean these silicone molds with soapy water. How to clean: Please clean the resin molds with clean water or when necessary, and then use a soft cloth to wipe clean. How to store: Please store the resin molds from direct sunlight and dust. Note Please make sure your resin piece is fully cured when you decide to release. Colour:White Material:Silicone + plastic Package Contents: 1* 6-side coaster 11.5*10cm 1* square coaster 10.7*10.7cm 1* round coaster 8.5cm 1* plum coaster 10.6*9.5cm (excluding finished products) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.