High quality material: Our threaded spindle rods with core screws 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 help prevent scratches on surfaces. (Note: Not recommended for 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 original factory bolts. Simply twist the nut to create a secure, tight fit against the wall for quick and easy installation. Wide application: Compatible with all snap gates, baby gates, pet gates, and child safety gates. Fits extra wide and tall door openings. Suitable for use with various gate types. 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, some color variation may occur. Actual product may vary slightly.