The bike rack is constructed using H.S. steel tube and a aluminum top casting. Height: 36.00" (91.4cm) Diameter: 20.00" (50.8cm) 17lbs (7.5kg.) All steel components are protected with E-Coat rust proofing. The Maglin Powdercoat System provides a durable surface on all metal surfaces. The bike rack is delivered pre-assembled. It is available with either a surface mount or direct burial installation option.