With the 21 cm metal extension, the Hauck Wood Lock Safety Gate can be quickly transformed into a stair gate. The extension is easily attached to the safety gate using a practical connector. In addition to the 21 cm extension, the Wood Lock Safety Gate can also be extended with a 9 cm extension. Thanks to the variable extensions, both narrow and wide passages or staircases (up to 123 cm) can be made child-safe. If you have a stair railing with round bars, the child safety gate can be additionally secured with separately available Y-spindles alongside the 9 cm and 21 cm extensions.

This results in the following options:
With extension: 9 cm = opening widths of 83 - 90.5 cm
With extension: 9 cm + 9 cm = opening widths of 92 - 99.5 cm
With extension: 21 cm = opening widths of 95 - 102.5 cm
With extensions: 21 cm + 21 cm = opening widths of 116 - 123.5 cm
With extensions: 9 cm + 21 cm = opening widths of 104 - 111.5 cm.