QUALITY MATERIAL - these round coaster molds are made out of flexible, sturdy and durable silicone, which makes it easy to release and clean up with soap and water MEASUREMENTS: the big coaster mold measures approx 8 x 8 x 1.5cm/ 3.15 x 15 x 0.60inch, perfect size for making your unique resin coasters DESIGNED WITH A LIP ON THE MOLDS - the round resin silicone molds have a lip on them to keep beverage spills, drips, condensation, etc. from running off the coaster, hold the glasses in place, which is very nice WIDE RANGE OF APPLICATION - the resin casting mold is very versatile in its usage! Perfect mold for epoxy resin coasters, small flower pot base, conceret, plaster, cement and polymer clay etc; use this mold to make unique handicraft gifts for your loved ones and friends that they will absolutely love 20 pack round silicone molds for coasters, great molds for your different diy craft projects, quality material allows for your sustainable use colour:clear white Material:Silica gel Package Contents: 20 x Silicone molds Only the above package content, other products are not included. Note: Light reflection 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.