80mm Metal 3D printer Fan Guard
80mm Metal 3D printer Fan Guard is used to protect the fans , 80 x 80 x 15 mm / 80 x 80 x 20 mm / 80 x 80 x 25 mm / 80 x 80 x 32 mm / 80 x 80 x 38 mm , from breaking by anything into working fans .