A method is provided for marking a vehicle wheel for subsequent identification. A calibration value and an expiration date for the calibration value are recorded by the controller for one of each type of lens and each magnification power. The device consists generally of a cylindrical housing threaded internally on one end for attachment to a firing pin assembly. The filter is also configured to expel the trapped embolic material into the other blood vessel. At least a fan is positioned at a side of the hollow chassis for generating air to increase an amount of air blowing through wider gaps between said fins to increase the speed of heat dissipation.