Amazon.com : Corrugated Plastic Cage Liner Base for Guinea Pig C&C Cage - for use with 13.8" Grids ONLY! NOT Measured by Feet- Used with Grid Cages for Guinea Pigs, Hedgehogs, and
Medium (2x3.5 Grids) Coro Base - Coro Bases - Cagetopia
Amazon.com : Corrugated Plastic Cage Liner Base for Guinea Pig C&C Cage - for use with 13.8" Grids ONLY! NOT Measured by Feet- Used with Grid Cages for Guinea Pigs, Hedgehogs, and