High height or lower than the applicable height of approximately 5.55 to 15 mm will cause negative effects even if not compatible. Two installation methods: 3M double-sided tape installation protects doors and walls from damage; screw installation with screws, more stable and durable. Magnetic door stopper not suitable for heavy doors. Heavy magnetic door stopper keeps your doors open - Keep doors open when needed, allowing air circulation in the house and preventing the sound of slamming doors. Pet owners and parents be cautious! You can solve problems: your dogs, disobedient children who like to slam doors. It's a practical and useful tool for home, office, hotel. The magnetic door stopper prevents doors from slamming and protects children's little fingers from injury, as well as reduces noise and damage to walls. Long lifespan: Over 70,000 tests, the door stopper will provide a longer lifespan than other door stoppers on the market. Compact size, saves space, more hidden and artistic, this magnetic door holder made of stainless steel keeps the door open. Deactivated by gently pulling the door away from the door stopper. Smooth and easy to use with minimal noise. No more problems with slamming doors. Strong magnetic door stopper: Zinc alloy is precision cast. It has strong wear resistance and corrosion resistance and does not rust for a long time. Strong magnetic suction that does not fade over time, does not fall off. Effectively protects the floor plate and door panel, easy to install. Strong iron suction, no demagnetization for a long time, resists strong winds. Thick solid base, not easily damaged. Classic door stopper design for bedroom, bathroom, office. This magnetic door stopper is environmentally friendly, durable, and removable without residue. It is very convenient to use and an indispensable helper in your life.