Car Coasters Suck It Up Buttercup Sarcasm Leaves Set of 2 Neoprene Absorbent Sublimated by Sassy Hippo Creations Our sublimation blank car coasters are made of soft and stretchy diving material, with anti-skid bottom to prevent the coaster from slipping off. The size of sublimation coasters is 2.75 inch in diameter and 5.0mm in thickness. CC-195 NEW Hand printed and made to order. View all photos in close-up as they are part of the description.