Sizes: 3.75 x 3.75" -- Set of 4 Thickness or Options: .125” Thick Hardboard Material or Use; Cork Backing. Printed using Dye Sublimation with Epson Ultra Chrome DS inks. Perfect for hot or cold beverages. Care of: Wipe clean with a damp cloth. Do not put in the dishwasher. Packaging: Poly bag and envelope.