This is the material we affix (with non-toxic glue) to the Cottontail Cottage external ramp to help give bunnies extra traction. However, we've found that this piece of wavy cardboard can be used in many different ways for small animals and are making it available by itself. It naturally curls up a bit, and can be rolled up into a tube for rabbits, guinea pig and rats. It can be cut and glued down to the Cottontail Cottage floors for extra traction, like it is used on the ramps. Use it to line cage floor bottoms. Use your imagination! 25" x 6 1/2". Can easily be cut into smaller pieces. Made of cardboard material and safe for small animals to chew.