Sufficient quantities and proper combinations will satisfy your various DIY needs in Quality material: these epoxy casting moulds are made of silicone material, they are , reliable and reusable, they can withstand temperature from minus 40 to 446 degrees Fahrenheit, you can use them for a long time, and they are non-, safe and tasteless, easy to clean with warm soapy water Simple to use: our round and square resin moulds set has smooth interior, so they are easy to demould, you just need to put the required filler into the mould, wait a while until the resin is completely cured, and gently twist the mould to push it out without tearing easily, while maintaining the shape of the mould Size of products: the diameter of round coaster mould is . 9 cm/ 3.54 inches, the size of the square coaster silicone mould is . 9 x 9 cm/ 3.54 x 3.54 inches, the round coaster holder silicone mould measures about 4 x 10.5 cm/ 1.57 x 4.13 inches, and the size of rectangle coaster storage box silicone mould is . 4 x 7 x 10.5 cm/ 1.57 x 2.76 x 4.13 inches Multiple applications: these epoxy casting craft moulds can be applied to create many projects from home decorations to jewelry , such as cup mats, coasters, coasters, bowl cushions, telephone holder trays, candle holders, handicrafts, jewelry storage boxes, and so on Colour: transparent white Material: silicone Package Contents: 1 x round coaster box mould 1 x square coaster box mould 5 x round coaster molds 5 x square coaster molds 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.