Features: 1. Complete Replacement Set: The package includes 8 replacement suction cups in 2 designs (4 cross-hole suction cups and 4 ring suction cups), sufficient for your needs and perfect for sharing with fellow cat owners. 2. Versatile Surface Compatibility: Designed for smooth surfaces such as tiles and glass, these suction cups provide strong, reliable adhesion to securely support cat window beds, perches, and hammocks. 3. Premium PVC Material: Made from high-quality PVC plastic, the suction cups feature a smooth surface that is safe, durable, and easy to attach. They leave no residue and offer long-lasting performance. 4. Multi-Purpose Use: Ideal for hanging ropes, wires, plastic rods, and chains. Perfect for securing cat window hammocks, perches, seats, and beds, as well as various other lightweight hanging items. 5. Two Size Options: Available in diameters of 8cm/3.15in and 8.5cm/3.35in, allowing you to choose the best fit based on your actual needs to ensure a secure hold for your cat's accessories. Product Details: These premium PVC suction cups offer strong adhesion on smooth surfaces like tiles and glass, providing reliable support for cat window beds, perches, and hammocks. The set includes two practical designs—cross-hole and ring-style—for versatile hanging applications. Easy to install and residue-free, they are durable and suitable for a variety of lightweight hanging setups. With two diameter options, you can select the ideal size for a secure fit. Specifications: Item Type: Cat Bed Suction Cups Material: PVC Size 1: Diameter: Approx. 8cm/3.15in Size 2: Diameter: Approx. 8.5cm/3.35in Package Includes: 8 x Cat Bed Suction Cups Note: Slight manual measurement variations may occur.