The Smokem Racing Ninja 25mm Fan Guard is made from 1.5mm thick 100% carbon fiber. What sets our distinctive design apart from other fan guards is the recess that has been CNC machined into the underside of the fan guard to provide added clearance to the ESC's fan blades underneath. This minimises premature failure to the fan blades without the hassle of having to shim up the fan guard. Also available for 30mm fans.