Duke Body Gripping Traps are rotating jaw traps used to quickly catch and dispatch wild animals. This style of trap was developed during the 1950's and has steadily increased in use due to versatility and effectiveness of the trap design. Duke Body Traps are widely accepted by state and federal wildlife agencies as the most effective humane traps for beaver population control. Unlike the normal Duke #330, the Magnum Jaw does not have a gap when closed making it highly effective for catching coyotes, bobcats and beavers on dry land in states that allow it.