3 Pcs Round Shaped 67mm OD 20mm Height LED Heatsink Cooling Fin Cooler Product Name : Cooling Fin;Material : Aluminium Color : Silver Tone;Mounting Hole Diameter : 4mm Mounting Hole Spacing : 24mm/0.94";Outer Diameter : 67mm /2.6" Total Height : 20mm/ 0.8";Weight : 292g Package Content : 3 x Cooling Fin