The OOK needle pointed blue steel nails are re-usable and leaves a pin size hole in wall surface! The hook's center-of-gravity guides are hand welded and allow no play in the nails, so the nail glides straight into the wall at the perfect angle for a secure hold. The padded backing protects the walls surface. Hanger is ideal for plaster and drywall surfaces, no stud is required. Picture Hooks packaged in a reusable storage tin, ideal as tool box stuffers or to keep in your kitchen drawer. Holds up to 20lbs. Pound ratings are not cumulative.