about this item Top quality: no drilling required, does not damage the wall or the glass. Clear and strong PVC material makes the hooks almost invisible, can carry any item under 10 kg, size: 60mm (L) x 60mm (W) Reusable and durable: Clean the adhesive surface with water when dirty. Can be reused after washing after drying. Easy to use: remove the protective film, clean and dry the smooth surface, press the hook firmly and remove air bubbles with a brushing motion. Wide Application: Suitable for wood, glass, frosted glass, glass grilles, ceramic tile, metal, acrylic, paint and other flat hard surfaces. Product 1. Made of colloid (3 m glue from USA), strong adhesion to surfaces, load capacity up to 5 kg. Waterproof and resistant to oil and high temperatures. 3. Reusable and durable, the hooks can be used repeatedly after cleaning and drying. 4. Easy to put on and take off, can be moved as you wish, no marks, no damage. Features: Color: transparent. Dimensions: 60 x 60 mm. Material: PVC + stainless steel. Contents: 30 hooks. How to install this wall hook? Clean the surface and dry the surface. 1. Carefully remove the cavity cover and do not touch the glue. 2. Press down on the hook bases to keep the wall stable from the middle to the edge. Make sure there is no air in the base and that it is in full contact with the wall. 3. After a few hours it is strong enough to support heavy fabrics. Remove and reuse? 1. Use a hair dryer to heat the hook/PVC. 2. Then press in the middle of the hook and slowly remove the film from the backing. PVC does not leave traces. After the PVC is cleaned and dried, the hook can be reused. Note: The data is manual measurement, please allow 1-81cm error, due to differences between the light and screen, there will be a certain color difference, the specific received in kind prevail.