In a V-frame made of lightweight, anodized metal, with an Isolan strap made of rust-protected steel, painted yellow and equipped with a polyamide protective coating. It features ball bearings, an ergonomic shape with grip knobs, a foldable crank arm, and a parking position for the start of the strap. The product has very high abrasion resistance. The Flextop start connector made of transparent, highly flexible plastic reliably reduces breakage at the start of the strap. It complies with EC accuracy class II.