Quality Material: The suction cups with hooks are made of high-quality material. The ceiling hooks are not easy to deform or rust and have strong bearing force and adhesion. They are transparent and visually appealing. Strong Adhesion: By removing the air from the adhesive side of the ceiling hook, a pressure difference is created between the inside and outside, producing suction. Before use, ensure the surface is clean, dry, and smooth, such as metal, glass, ceramic tile, wood, or marble. Package Includes: 200 pcs damage-free hanging hooks and 200 metal hooks. Ceiling hanging hook diameter: 3 cm (1.2 inches), hook length: 2.1 cm (0.83 inches). Sufficient quantity for various hanging and decoration needs. Easy to Use: Remove the protective film from the back of the ceiling hook, press it onto a clean and smooth surface, then squeeze out the air to activate the suction. Attach the metal hook to the suction cup and hang your decoration. Wide Application: These small adhesive hooks are reusable and ideal for use in homes, apartments, coffee shops, bedrooms, balconies, and during events such as birthdays, parties, weddings, Christmas, and Valentine's Day. Suitable for hanging banners, plants, window decorations, small wind chimes, posters, and light strings. Product Name: Small Round Removable Hooks for Hanging (3 cm) Product Size: Sticky Hook Diameter: 3 cm (1.2 inches) Hook Length: 2.1 cm (0.83 inches) Color: As shown Material: Plastic + Metal Package Contents: 200 x Damage-Free Hanging Hooks 200 x Metal Hooks Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3 cm.