ferret nation ramp cover (3-pack) for ferret nation & critter nation small animal cages | ramp measures 18.25l x 5.5w - inches midwest homes for pets ramp covers for ferret and critter nation keep your pet's feet safe from getting stuck in the wire ramps. this item is designed to fit all ferret nation and critter nation cages. features: easily slides over existing ramps protects pets' feet provides traction and no-slip passage between levels ultra soft, reversible polyester; also washer and dryer safe item specifications: size: 18 1/8"l x 5 3/8"w material: 100% polyester package count: 1 pack 3 pack