Keep your pet safe with the Summer Wood Banister & Stair Dog Gate， a solution specifically designed for stairways and banisters. This secure gate—which is 33 inches tall and can fit openings 33 inches to 46 inches wide—comes with a special mounting system that can handle banister-to-banister installation or single banister installation at the top or bottom of stairs， as well as hardware installation in doorways and other openings. It’s even compatible with square-top banister posts and no drilling is required when installing to banister. Bonuses? One-hand release， stability from the support foot and extra safety over the stairs from the directional doorstop.