YKD Ferret Cage Liners for Ferret Nation & Critter Nation Cages, Waterproof Chinchilla Cage Accessories, Washable Bedding, for Ferrets, Chinchillas, Rats (Starry Colors, Double Unit Set)Brand: YKD Color: Starry Colors Features: Designed specially for use with the Ferret Nation and Critter Nation cage. A stretchy elastic bottom makes the liner easy to put on and secure over the trays, The top pan includes a cut out for the ramp opening. The ramp covers slide on to the ramps and are secured with a strong hook and loop (velcro) closure. This product is made of printed fabric on the top layer and high quality absorbent cotton on the