20pcs/lot Silver Aluminum 19x15x10mm TO-220 TO220 heatsink radiator for MOS,L7805 LM337 Triode Transistors Cooler IC Chip Color: Black Compatibility: Motherboard Chipsets Features: Aluminum Heat-Sink, For Package TO-220 / L7805 /LM337 Triode Transistors Cooler IC Chipset Quantity: a lot of 20 Pieces M3 Screw Hole. Size: 19x 15x 10mm/ 0.8 x 0.6 x 0.4 (L*W*H) Thickness 0.8mm Color : Anodized Black Weight: 2g/ piece Please check the specification table and make sure that the size of the heatsink fits that of your component Dimensions: 19x 15x 10mm