Name :Wheel lock , Wheel clamp, Wheel klamp,Tyre lock Model :CAS-CLS-5 Spec. dia.1200Width380mm,thickness2.5mm 1200X380X2.5mm dia.780Width280mm,thickness2.5mm 780X280X2.5mm dia.1200Width380mm,thickness2.0mm 1200X380X2.0mm dia.780Width280mm,thickness2.0mm 780X280X2.0mm Material: high quality steel pipe, high pressure . Function : Lock the wheel of the cars . It can be used in parking lots and any other places for car stopping .