Features 1. Mechanical door stopper: Unlike traditional magnetic door stoppers, this door stopper uses mechanical instant locking technology to securely hold your door in place. Built-in spring damping helps absorb impact and prevent damage. 2. Safety protection: Helps prevent fingers from being caught in doors, making it ideal for homes with children or pets. Keeps doors open and prevents accidental slamming caused by wind, children, or pets. 3. Adjustable height: The touch rod length is adjustable, allowing for an adjustable door gap of 20mm (0.78 inches). Can be installed on narrow door frames and works with various door types, including heavy doors. 4. Durable construction: Made from high-quality zinc alloy with electroplated finish for enhanced durability, strength, and easy maintenance. 5. Flexible installation: Offers two installation options quick and easy mounting with strong double-sided tape, or secure attachment using screws. Includes 3M adhesive tape and nail-free adhesive for damage-free installation. Specifications Material: Alloy Color: Black, Yellow, Silvery, White Size: 16 x 9.5 x 3 cm Weight: 250 g Package Includes: 1 x Punch-Free Mechanical Silent Floor Door Stop