With this metal extension of 21 cm, the hauck safety gate Autoclose'n Stop and Open'n Stop Safety Gate can be rebuilt into a stair gate in the twinkling of an eye. The extension is simply attached to the safety gate by the practical connector. Our Autoclose'n Stop and Open'n Stop safety gates can be combined individually with extensions of 21 cm and 9 cm. Thanks to the various combination possibilities, the gates can child-proof passages of a width up to 123 cm. FEATURES: Easy assembly - no drilling necessary Optional extras: 9cm or 21cm extensions Combinable with separately available Y spindles