2pcs/lot Double needle Aluminum Heatsink 38x34x12mm TO-247 TO247 heatsink radiator for MOS,TO-220/TO-3P IC chip heat dissipation Color: Black Compatibility: Motherboard Chipsets Features: Aluminum Heat-Sink, For Package TO-220 / TO-3P / TO-247 Rectifier, Transistor or Regulator IC. Quantity: a lot of 2 Pieces. M3 Screw Hole. Size: 38mm x 34mm x 12mm/1.5 x 1.33 x 0.47 Color : Anodized Black Weight: 17g/ piece Please check the specification table and make sure that the size of the heatsink fits that of your component Dimensions: 38mm x 34mm x 12mm