High Quality MaterialOur threaded spindle rods with core screws made of steel and ABS plastic, durable and reusable.Strong material that won't crack with pressure, helps make the ramp door tight fitting and sturdy , to ensure the safety of children or pets. Safety and stability This set screw makes your baby gate more stable and will not malfunction. A good way to protect walls or stair railings, rubber ends protect your stairs from scratches (don't use it at the top of stairs. Easy to installOur spindle rods threaded with adjustable length bolts, no tools required, no holes in the wall.These spindle rods work just as well as the factory bolts.Just twist the nut and create a reverse force against the wall , quick and easy to install. Wide ApplicationSuitable for all pressure gates, baby gates, pet gates, passes through an extra wide and tall door, safety doors to childproof with gate.Suitable for all pressure mounted baby or pet gates.put your old gate back in service, save you from buying a new gate. Package included Pack of 4 threaded spindle rods in the package. Size: M10 diameter (10 mm ), length 80mm, top diameter 35mm (1.38in), only suitable for M10 spindle hole. Not for 8mm screws. Product Description Feature: 1. This door adapter is quick and easy to install, requiring no tools. 2. Please make sure your Baby Gate hole can insert M10 (10mm) bolts before purchasing. 3. Protect your wall, door, stairs, railing from damage caused by pressure gates or dog gates. 4. Rubber tips to protect your stairs from scratches, mount baby safety gate on stairs against baluster, round post. Specifications: Product name: spindle threaded rods Color: white Material: steel core screw + ABS plastic Size: M10*8cm Weight: 300 G Package includes: 4 spindle threaded rods Installation method: 1, the adjustment wheels along the thread to make it a good situation, eliminating the gap between the adjustment wheel and the rubber foot. 2, insert the 4 threaded rods into the holes at each of the 4 corners of your Baby Gate. 3 Position the gate and make sure it is level and centered in your doorway or opening, then spin the adjustment wheels that are on the rods threaded pins to put it in a good situation. Warm Tips: Please Please make sure your Baby Gate hole can insert M10 (10mm) bolts before purchasing.