Around The Bobbin Coaster Ride Pattern- Create your own designer coasters with a silicone overlay. Silicone overlay is 100% food grade silicone and heat resistant up to 450 degrees. Just add 3 fat quarters of fabric, cotton batting, and fusible foam stabilizer to create 4 coasters and a holder. To make more coasters, use ARBATB188 Silicone Coaster Refill, sold separately. Coaster measures approximately 4.25. Includes 4 silicone coaster overlays, sewing instructions, and cutting templates.