The HABO Backcheck and Slam Door Openers 585 are suitable for single-window windows with HABO Turn-Only Pinions. These opener plates can be used in combination with the HABO strikers S560, S570 and S580. The position plates are provided with a hook that engages into the cam and a magnet that snaps the position plate neatly into place. The anti-panic plates are provided with the SKG* quality mark and hereby comply with SKG** with 2 pieces per window. An obligation to comply with SKG is to replace the screws at the hooks for the included anti-burglary screws (one-tooth screws).