Cooler Master, an industry leading chassis, thermal solution, peripheral, and accessory manufacturer, signals the rebirth of a household name in computing, the Hyper 212 EVO CPU Cooler. It comes packed with an improved tower fin design, heat pipe layout, and upgraded fans and fan brackets that provide an even more extreme value for end-users of all types. Dents are created when the heat pipes are sealed.The cut and seal is not a damage, after the heatpipe is full, machine will crimp it.