Enough for daily use: You will receive 20 suction cups, each with a diameter of about 1.57 inches (4 cm), small and compact enough to meet your needs for hanging appliances and tools in daily life. Robust glass suction cup: The suction cup with screws is made of transparent PVC material and equipped with nuts. It has strong suction, is lightweight, waterproof, and reliable, providing long-term performance. Wide application: These window suction cups are suitable for most smooth, flat, and clean surfaces, such as glass, windows, mirrors, refrigerators, doors, bathroom walls, fiberglass, metal, and ceramic tiles. Wipe the surface clean before use to ensure proper adhesion. Reusable and portable: To reposition or move the suction cups, simply remove them with a knife, press directly onto a clean smooth surface, and expel the air to restore suction. They maintain reliable performance through multiple uses. Place of use: These plastic suction cups without hooks can be used for license plates, visors, acrylic panels, rattan furniture, garlands, and larger decorations. Suitable for use in kitchens, offices, bathrooms, and more. Material: PVC Color: Transparent Package Contents: 20 x Suction Cup Note: Light reflection and different display settings may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.