Cats gravitate to the K&H Pet Products Wall Mount Cat Shelf + Cat Hammock for its unique features. This cat shelf and cat hammock all in one product is available in single shelf or double shelf. The single version includes a single top shelf that creates a cozy space for cats to perch and nap, and a convenient opening to climb into a more sheltered hanging cat hammock hideaway below. The double version includes two cozy shelves providing the option for multiple cats to perch, nap and play on top; and the convenient opening on the 1st level to climb down below into the hanging cat hammock cat hideaway. Both versions easily mount to any wall with detailed instructions and all hardware needed is included. The adjustable wires assist in leveling to reduce installation errors. All covers of the K&H wall mounted cat beds are removable and machine washable for easy wash and care; simply remove the cat perch cover and toss in the washer, then pop in the dryer or line dry. Designed & patent pending by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets; one-year limited warranty.