The G2101 has angle-mount hardware that allows the metal gate to be installed in any position, including on angled banisters and walls. The hardware allows the gate to swing both ways and has a stopping feature to prevent the gate from swinging over the stairs. The hardware also allows the safety gate to be quickly released from its mountings as desired. It stands 31" high and is constructed of strong tubular steel. Perfect for the top of stairs, as a window barrier, or at a doorway. Mount directly to walls and banisters or add a gate mounting kit if you have hollw walls, baseboards, or don't want to screw into your banisters or woodwork. One-hand adult operation of child-proof latch. Basic gate fits openings 28" to 42.5" wide. Optional extensions available for larger openings.