High quality material: Our threaded spindle rods are made of steel and ABS plastic, durable and reusable. Strong material that won't crack under pressure, helps make the ramp door fit tightly and securely, ensuring the safety of children and pets. Safety and stability: This pressure screw enhances the stability of your baby gate and prevents malfunction. Effectively protects walls and stair railings; rubber ends prevent scratches on surfaces. (Do not use at the top of stairs.) Easy to install: Our threaded spindle rods feature adjustable length bolts, no tools required, and no drilling needed. These dowel rods perform as well as factory bolts. Simply twist the nut to create a secure pressure fit against the wall for quick and easy installation. Wide application: Compatible with most snap gates, baby gates, pet gates, and child safety gates. Fits through extra wide and tall doorways. Note: Package includes 4 threaded spindle rods. Length: 80mm, top diameter: 34mm. All measurements are manually taken; please allow 1-3cm variation. Due to differences in lighting and display settings, colors may vary slightly. Actual product may differ slightly from images shown.