Frame work made or rectangular M.S. tubes stainless steel top in 3 sections. Trendlenburg positions adjustable by pneumatic gas spring system Hydraulically height adjustable by foot paddle by side. Backrest section adjustable on rachet. Leg and section and slide under the main section Height adjustable a pair of knee crutches. Pre Treated and Epoxy Powder Coated. Size : 72"L x 27" x 24"-32"H.