Don’t drill into your banisters and ruin your woodwork! The Qdos Universal Stair Mounting Adapter prevents damage to your woodwork by eliminating the need to screw into your banister when installing baby gates on banisters or spindles. Features: -The Qdos Stair Mounting Adapter works with ALL brands of baby gates up to 34” tall, both Hardware-Mount and Pressure-Mount! -Complement most baby gates, and fits square banisters up to 4”x4” or round banisters up to 5” in diameter.