Reusable & Removing Without TracesThe hooks can be heated with a hairdryer, wait until the sticky glue hooks softened and then hold the prominent position of the base to remove it slowly with no traces.Wash and use the hair dryer to warm up,so you can reuse this wall utility adhesive hook, environmentally friendly Work on Most of the SurfacesThese transparent hooks work on most of the surfaces, like frosted glass, mosaic smooth tile, non-paint walls, ceramic, metal surface and other hard flat surfaces,which is gonna satisfy your need on heavy duty adhesive hooks definitely Easy to InstallTo install, just remove the cover starting from the bulge, then put your clear adhesive hooks on smooth surfaces,press multiple times,wait 24 hours to get a best adhension result. 180 Rotating Design180 rotating humanized design makes it possible for the waterproof adhesive wall hook hanging on ceilings, and you are going to get more conveniences from this special design reusable wall hooks MaterialThese transparent adhesive hooks are made of PS & PET, bear up to 22 lb/10 kg, waterproof and nail free, Size: 2.36 x 2.36 inch/ 6 x 6 cm