Double-layer Window Hammock : Double level hammock offers your (s) comfort and .saves more room space than a single floor, and without taking up valuable floor space. Safe and Strong Suction Cups: 2 vacuum suction cups at top and 4 strong suction cups at bottom. , Industrial-strength suction cups to 60 lbs, Super sucker provides safety for your lovely cats. LATEST DURABLE SCREW SUCTION CUPS: Screw suction cups can pat the air more cleanly and better adhere to the wall. Compared to the 25% fall off rate of the old regular suction cups, the improved suction cups has only about 5% fall off rate. Suction cups that can to 60 LBS. 20% MORE SPACE: Lengthening and widening design, your 15lbs and 29lbs cats can jump and play together without feeling crowded in window . Perfect for cats that like to bask in the warm sun or active cats that desire a high vantage point. MACHINE WASHABLE COVER: window mat is breathable and durable, easy to clean, no smell. Made of food grade mesh cloth, 's body temperature 't overheat. With underneath its ultra-soft, machine-washable fleece cushion. Your will snore in her/his new bed. TIPS: The suction cup is made of high-quality PVC material. It is easy to become hard and fails to work properly when room temperature is too low in winter. As above suggested, putting into hot water for 2 mins will be helpful to regain the decent suction force. Type: B: pattern Feature:Breathable color:Blue+black Material:Cloth+PVC size:51 x 31cm Package Contents: 1 x Window Perch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.