The 28cm Safety Gate Extension from Safety 1st is ideal for homes with wider door openings or staircases. It is compatible with Safety 1sy Simply, Easy and Auto Close Pressure Fit Gates, which fit opening widths of 73 to 80cm. These gates can also be used with 7 and 14cm extensions to cover a maximum opening of up to 136cm. Safety gate features: Pressure fit. Carefully measure the width of the opening before ordering extensions. Summary of features: Extension kit adds an additional 28cm to the width of the gate. Only compatible with Safety 1st Simply, Auto and Easy Close Pressure Fit Gates. Extensions needed to install a Safety 1st gate for openings wider than 80cm. Easy to install. Whats in the box: 1 x Safety 1st 28cm Extension. 1 x Manual. Double locking. General information: Self-assembly. Manufacturers 2 year guarantee.