Pack of 10 - World Time Zone 3D effect Reference Pad sponge backing Scratch-resistant Lexan hardtop surface provides extraordinary durability. Lenticular lens surface gives stunning 3D effect. 3D mouse pad- with 3 IMAGE FLIP effect (3 World Time Zone maps layered in 1 Reference Mousepad) Sponge Backing. Size is 7.75" x 9.25"