Amazon.com : Guinea Pig Cage Liners - Washable Guinea Pig Pee Pads, Waterproof Reusable & Anti Slip Guinea Pig Bedding Fast and Super Absorbent Pee Pad for Small Animals Rabbit Hamster Rat :
Cagetopia Fleece Cage Liner for Guinea Pigs, Bedding for Guinea Pig C&C Cages - 2x6 Grids Size