Product Name: Heatsink Cooling Fin Fin :22 pcs Size : one hundred twenty x sixty nine x 27mm/ four (L) x 2 (W) x 1 (H) Widely used for computer, Power Transistor, FET, IC, Power Amplifier, Voltage Regulator, MOSFET, SCR etc. Colour: black Material: aluminum Package Contents: 1 * Black Aluminum warm temperature sink module Only the above kit content, different item will not be included. Note: Light and diversified exhibits may cause the color of the thing within the photo barely diversified from the genuine thing. The length allowed error is +/- 1-3cm.