Purr Pad Cat Rugs (2) @20"x20" Bed or Cover. This highly unique patented product from Flexi-Mat Corp. is Electro statically Charged to trap Flea Dirt, Hair, and Dust. The tough, yet ultra soft polyester fibers work as an insulator, to absorb and hold heat, keeping your kitty warm and cuddly year round. The materials used in the Purr Pad are 100% non-allergenic, 100% non-toxic, and made from 100% recyclable materials.