Package includes: you will get 8 pieces replacement cat window perch suction cups in 2 styles, 4 pieces for each style, which are enough to meet your needs, and you can also share them with your family and friends who keep cats Powerful suction cups: the cat window perch suction cups can be applied to smooth surfaces, such as tiles, glass, etc., which have strong suction and can support your cat's window bed well Sturdy and durable: the cat hammock suction cups are made of quality PVC plastic, with smooth surface, safe and sturdy, which are easy to stick on walls and windows without leaving any residue, and can be applied for a long time. Wide applications: the cat window bed replacement suction cups are suitable for hanging ropes, iron wires, plastic rods and iron chains, and can also be applied to hang a window hammock cat window perch, cat window seat, cat window bed and more