Straps install onto any round tube from 12mm to 60mm (0.5 to 2.4), as well as most irregular and aero-shaped tubing found on bicycles
Rotating articulating clamps allow for secure installation onto virtually any bicycle in a wide range of positions
Usable extension length of 18 to 32 (45cm to 81cm)
Collapses and folds to 17 (43cm) for storage