This Stairway Gate Installation Kit from KidCo has the materials and fasteners necessary to properly install any child safety gate to stairway banisters, without drilling into your expensive, decorative wood. One kit is required for each side of the gate that is being mounted to a banister. For use at the top or bottom of stairs with hardware or pressure mount gates. Part of the KidCo safety gates line, the Stairway Gate Installation Kit's hardware is designed to fit square posts 2 1/2" to 3 5/8" wide or use the included insert for round post installation.