Fits most barriers. Once the barrier is fixed, you can prevent the child or pet from leaving the safety zone, the threaded rod adapts to most places (walls, stairs, wood, etc.). High quality. This fastening tool is made of metal and ABS plastic. It is durable and reusable. The appearance of the screw is ion-plated white zinc, which is simple and beautiful. Easy to install. The length of the screw to be used can be adjusted as needed, and it can be easily attached to the four corners of the fence. No tools such as a wrench are required. No drilling. Turn the knob and the reaction force between the nut and the wall slowly fixes the barrier. One end of the screw is rubber to protect your wall or stairs from damage. Features - High-quality threaded rod will not break under pressure. It firmly fixes the gate and protects the safety of children and pets. - It is a special threaded rod for door/window railings and fits most safety doors and windows. stair railings. Perfect for attaching baby gates, pet gates, etc. - Metal screw and ABS are perfectly matched. Simple and beautiful. The installation distance is 2.5 cm to 7 cm. - This fastening rod can be installed quickly and easily without tools, saving time. - It does not rust and is sturdy and durable. For families with children or pets, it is an ideal choice. Installation method 1. Insert 4 threaded rods into the holes in the 4 corners of the barrier. 2. Place the gate and make sure it is perpendicular to the wall. 3. Turn the adjustment wheel along the screw to adjust the length to eliminate the gap between the adjustment wheel and the four corners of the barrier. Specification Material: metal + plastic Surface treatment: Ion-plated white zinc Weight: 72g/piece Length: 8cm Condition: New Color: White Note Before ordering, please make sure that the holes in the baby gate are suitable for M10 (10mm) bolts. Package contents 4 * Threaded rod