Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. CLAMP STYLE * 18" W x 16" H * Designed for mild postural needs * Provides mild posterior pelvic-stabilization * Provides mild thoracic support * Facilitates thoracic extension * Lightweight, for improved propelling efficiency and ease of transport * Lightweight, contoured, aluminum shell and soft foam-insert * Creates minimal loss of seat depth * Provides mild lateral support * Includes an light weight aluminum shell, foam, both a 0" and 8" top mounting hook and the choice of clamp or strap style hardware *