Wheel clamp
![An early wheel clamp device offering a $100 reward if tampered, mounted on a 1920 Hudson](/Images/godic/202502/20/1920_Hudson_Speedster_Touring_at_2015_Rockville_Show_8of81823.jpg")
![A modern wheel clamp placed on a vehicle for a parking violation in Melbourne by the Victorian Sheriff; note the tire spikes and panel preventing the vehicle being driven or the wheel being removed](/Images/godic/202502/20/Wheel_clamped_BMW5Series,_Little_Collins_St,_Melb,_19.10.2011,_jjron_crop1824.jpg")
![Wheel clamp as used by the Los Angeles Department of Transportation](/Images/godic/202502/20/Denver_boot1824.jpg")
![A wheel clamp attached to a vehicle at Duke University](/Images/godic/202502/20/2009-02-26_Wheel_clamp_on_Hummer1824.jpg")
A wheel clamp, also known as wheel boot, parking boot, or Denver boot, is a device that is designed to prevent vehicles from being moved. In its most common form, it consists of a clamp that surrounds a vehicle wheel, designed to prevent removal of both itself and the wheel.