Package Includes: You receive 8 pcs thickened suction cups with screws, approximately 5.5 cm / 2.16 in in diameter with M6 x 14 threaded screws, featuring a thickened edge design for enhanced suction and strength, suitable for various applications. Strong Adhesion: These heavy-duty suction cup hooks are made of high-strength transparent environmentally friendly PVC material, soft and thick, providing strong suction. They can be easily fixed on smooth surfaces and remain firmly attached through repeated use. Performance is unaffected by heat or cold, ensuring items are securely hung. Anti-Corrosion Design: The screws and threads are constructed from 304 stainless steel, offering excellent corrosion resistance, making them suitable for use in bathrooms and outdoor environments. The screw and nut design allows for easy installation and removal, improving convenience and safety. Easy to Install: These window suction cups require no pre-soaking in warm water. Simply ensure the surface and suction cup are clean, press into place, then tighten the nut to complete installation. Simple operation saves time and effort, ideal for all users. Wide Application: These large suction cups adhere effectively to most smooth surfaces such as glass, acrylic, metal, tiles, and car windshields. Suitable for use in bathrooms, kitchens, offices, cars, and other locations. Product Name: 8 pcs Thickened Suction Cup Hooks Product Size: Diameter 5.5 cm / 2.16 in Color: Transparent Material: Plastic Package Contents: 8 x Thickened Suction Cup Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1–3 cm.