A molded seat sits atop two skis to provide a great base of support for bi skiers. The skis articulate to create a variety of turn shapes, aiding in speed control. Students can turn the bi ski with subtle movement from the head or with the use of hand-held outriggers. The Bi ski is typically tethered by an instructor is commonly used by folks with spinal chord injuries, spina bifida, stroke, cerebral palsy, muscular dystrophy, multiple sclerosis, hemiplegia, uni-lateral or bilateral leg amputation, traumatic brain injury or other orthopedic diagnoses. The bi ski is a great way to experience sliding on snow and can serve as a building block to promote independence with use of hand-held riggers.