We can supply Metal Finger Guard and Plastic Filter Guard . dimension form 30mm to 150mm Detailed descriptions :1. YM-03 For 30mm Fan, YM-04 For 40mm Fan, YM-05 For 50mm Fan , YM-06 For 60mm Fan , YM-08 For 80mm Fan, YM-09 For 90mm Fan , YM-12 For 120mm Fan , YM-15 For 150mm Fan 2. Fan Guard type : Metal finger guard or Plastic filter guard