Comes with middle D-Ring clip for additional attachments. Includes two adjustable cuffs for ankles or wrists, which attach to each end of the Bar. Materials: Aluminum, polyester fabric, polypropylene webbing, nickel free metal hardware, polypropylene plastic (PP), Velcro Includes: 37 cm center aluminum tube, 37 cm spring locking expanding aluminum tubes, 2 cuffs with snap links, when assembled: expands from 74 cm to 94 cm