"It is made from quilted cozy soft fleece material, easily attached to the cage with screws.^ Your pets can either lounge on the top layer or snuggle in the bottom one.^ Measure approx: 23 x 19cm / 9 x 7.5 inch ( L x W) .This item will comfortably fit ferrets ,rats, syrian hamster, golden hamster,sugar glider and more^ This fun activity toy promotes exercise, and provides amusement and a comfortable place to rest. Hammock suitable for small pets to sleep or hide away^ This toy is not indestructable.Please check regularly for signs of chewing and replace if necessary."