Welcome to the store! High-quality material Our standard door stoppers with steel-core screws & ABS plastic are durable and reusable. Solid material that won't crack under pressure helps make door stops tight and sturdy to ensure safety for children or pets. Safety and Stability This pressure screw makes your baby door stop more stable and won't malfunction. A great way to protect walls or banisters; rubber ends protect your stairs from scratches. (Do not use at the top of the stairs) Easy to Install Our standard door stoppers with adjustable length screws require no tools; no need to drill holes in the wall. These door stoppers work just as well as factory screws. Simply twist the nut and create reverse force against the wall; quick and easy to assemble. Wide Application Fits all pressure-mounted baby door stops or pet door stops. 4-pack standard door stoppers as replacement; take your old door stop back into use and save from buying a new one. The package includes 4 standard door stoppers. Size: Diameter M10 (10mm), length 80mm, top diameter 35mm (1.38 in), fits only for M10 door stop holes. Not for 8mm screws. Color: White Function: 1. This door stop is quick and easy to install and requires no tools. 2. Ensure that the hole on your baby door can fit M10 (10mm) screws before purchasing. 3. Protect your wall, door, stairs, and banister from damage caused by door stops or dog door stops. 4. Rubber ends to protect your stairs from scratches; allows mounting a baby safety door stop on the stairs against a baluster, round pole. Specifications: Product name: Standard Door Stoppers Color: White Material: Steel-core screw + ABS plastic Size: M10*8cm Package includes: 4 standard door stoppers Installation method: 1. Adjust the wheels along the threading to get it in the right position; eliminate the gap between the adjustment wheel and rubber foot. 2. Insert all 4 standard door stoppers into the holes of each of the 4 corners on your baby door. 3. Place the door stop and ensure it's level and centered in your door opening or opening; then rotate the adjustment wheels on the threaded door stoppers to get it in the right position. Warm tips: Ensure that the hole on your baby door can fit M10 (10mm) screws before purchasing.