2 installation methods, 1: 3M tape is double-sided self-adhesive, no drilling required; 2: spiral inserts; our installation method ensures that our door stops can be used on any wall surface, protecting your tile, glass, cement, wood, fiberglass, any smooth or rough surface of door handles, furniture or cabinets . Note: 3M double-sided tape should be placed for 24 hours before use, the effect is better. Reliable installation, adhesive tape, we choose 3M, super glue; screws, compared to others, we add a screw, the triangular bracket is more stable, the two installation methods have a long service life, the lifting weight can reach 10 pounds, and it will never fall off, always protect your walls . Can be mounted on the wall, keeping the door open, or mounted on the door without damaging the wall 3 inches tall and made of stainless steel, it will not rust and ensures durability and reliability. Works great, feels great in the hand, looks great, and is perfect for home use. Updated Details - Child-safe, our bumper rubber tips are hard to remove, we screw on the tips to reduce the risk of tips becoming a choking hazard. The rubber end cap protects your door, provides ample padding between the handle or doorknob and the wall, and also reduces noise, which is essential in any high traffic area like a school or office. p> Wide Applicability: Our door stops can be installed in bedrooms, bathrooms, living rooms, offices, schools and are suitable for all wall surfaces, even glass. Please enjoy this completely risk-free purchase.