Powerful Suction Cups: the cat window perch suction cups can be applied on smooth surfaces, such as tiles, glass and so on, which have strong suction and can support your cat window bed well<br> Sturdy and Long Lasting: 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 residue, and can be applied for a long time<br> Extensive Usages: 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 cat window hammock, cat window perch, cat window seat, cat window bed and more<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store