If you want to change the suction cup, this item is your best choice. Features: Suction cup replacement. Powerful vacuum suction, environmentally friendly friendly environment, non-toxic, non-slip, durable.Helps to hold the cat hammock.Suitable for cat window hammock and cat window perch.If you have any problem, please contact our store without hesitation. Honor to serve you! Specification: Name: Suction Cup Main Material: PVC Color: Transparent Size: 8.58.54cm Package information: Package size: 111116cm Package weight: 200g Plastic packaging Packing list: 4 * Suction cup 4 * Screws 4 * Sticker