Single hook hanger Billet machined construction with a black-anodized finish Can also be used for goggles and headsets Strap clamps are non-intrusive; thin enough to sneak under your roof Fits around any cage tubing in 1.5", 1.75", 1.85", and 2.0" OD Requires one OD size-specific Strap Clamp (sold separately). HANGER HELMET/S-WHEEL