Leckey Horizon Stander, Adjustable 3-in-1 Support. Clinicians love the easy adjustability, children benefit from comprehensive positioning. back to: Standing Devices Leckey Horizon Stander. At a Glance Powered adjustment to achieve a full range of angles: 0-90 degrees supine and 0-90 degrees prone Chest pad, hip pad, knee supports and footplates are all height adjustable so that the Horizon can be set up to suit multiple users Different trays fit supine or prone set-up, and both angle adjust to allow activities when the stander is at an angle Unique positioning achieved by our pelvic belt and hip laterals enables de?rotation of the hips Adjustable knee supports can be set up to accommodate or correct flexion at the knees Independently adjustable footplates can be set up to accommodate plantar or dorsiflexion and can be flipped away to facilitate transfer