Milliard Portable Outdoor Pet House for Cat, Kitty or Puppy; Perfect Bed Cave or Shelter, 22 x 18 x 17 in Pet house is made from 600 denier nylon canvas to be durable, light, insulated and waterproof Assembles in seconds with Velcro and zippered joints  no tools required! Dual openings to the house allow an escape exit for your pet when confronted by intruders. Removable door flaps are transparent to give your pet a view of the outside, but keep heat inside when installed. House measures: 22 x 18 x 17, inner dimensions: 18 x 14 x 16" (LxWxH)