The scratch pad is made of corrugated cardboard, which provides felines with a safe surface to put their claws into. Replacement Scratch Pad for the Catit Play n Scratch Toy For use with each color of the Catit Play n Scratch Provides felines with a safe surface to put their claws into Scratcher Pad is Reversible ; Scratching helps cats relax, stretch their muscles and spread their scent Dimensions: 22.86 x 22.86 x 3.81 cm