◇The cork backing sheets can be used for bottom of ceramic or glass, you can turns a standard 4 "x4" ceramic or glass tile into coasters with them. You also can easily cut the shape you want
Package includes:
◇Package includes: 80 x Self Adhesive cork round sheets
◇Material: natural softwood
◇Size: 4"x4" (100mmx100mm) 5/64" (2mm)