21 cm extension for hauck safety gates with this metal extension of 21 cm, the hauck pressure fit safety gates for doors and stairs clear step autoclose, clear step, autoclose n stop 2, autoclose n stop, open n stop kd, open n stop and stop n safe 2 can be extended in the twinkling of an eye. all hauck pressure fit stair gates have a standard dimension of 75 - 80 cm and can be combined with a maximum of two extensions - one on each side. In addition to the stair gate extender, you can use the hauck y-spindles to install the child gates on stair railings with round or oval bars up to a diameter of 10 cm. The y spindles replace the adjustable pressure screws of the safety gate on one side. the following measurements are possible: 75 - 80 = safety gate - standard dimension without extensions96 - 101 cm = safety gate + 21 cm extension105 - 110 cm = safety gate + 9 cm extension + 21 cm extension117 - 122 cm = safety gate + 2 x 21 cm extension product dimensions: 77cmx21cmx2cm composition: plastic, steel this product will be dispatched by one of our trusted suppliers. You’ll be contacted by their selected courier about your delivery.