Belt 54% Polyurethane foam, 18% Cotton, 18% Polyester, 10% Polypropylene. Black PVC clip fastener. Packaging Single pack. Shrink-wrapped in transparent polyethylene. Sizes: M (75-160 cm) L (90-200 cm). Belt height: 15 cm. Support belt suitable for: Indicated for people who for whatever reason have a tendency to slide off the seat of the chair and are not able to maintain a correct body posture in the seat, and may present a risk of injury or fall. These devices do not have specific indications and there are many reasons why their use is necessary.