The Dreambaby 9cm extension is designed for use with the Dreambaby Liberty Pressure Mounted Gate to add extra width to a required opening. Safety gate features: Pressure fit. Suitable for both the top and bottom of stairways, doorways and hallways, and pressure mounted installation means no screws or drilling. Extensions can be a huge help if your hallways or stairway is too wide for a gate. Sturdy metal construction. 2 way opening. 1 handed opening and locking. Step over bar. Wide walk through section. Height 76cm. 9cm. General information: Minimal assembly.