Check the listing for details. Permobile Powerchair Bracket | PERMOBILE. Condition: New with box. Listed at 8.00 USD. Permobile Powerchair Bracket * The Permobile Powerchair Bracket mounts in the Dual "T" Track aluminum extrusion underneath the armrest utilizing screws and nuts supplied with the bracket. * Open access to the end of the Dual "T" Track extrusion is required for mounting the bracket. * Loosen the screws and nuts supplied with the bracket enough to be able to slide the nuts into the two "T" Tracks and retighten. * Mounting arm attaches with screws to the underside of armrest chair. Bracket is specific to mobility device. Screw holes are pre-existing in armrest. * Once installed snap the SnapIt! accessory into the bracket. * The center of the mounting screws is 2" back from the inside edge of the "U" shaped bracket. * If your application requires a longer bracket please contact us for further information. * All holders come with a SnapIt! bracket. This item is a replacement or additional bracket for use on a second mobility device. Cup/phone holders can be attached to any bracket.