ITEM NAME:20x Transistor MOSFET Sink Mini Aluminium to-220 Cooling Fin 23x16x30mm Description: 20 sets MOSFET tube heat sink. 23.5x15.8-30MM Transistor To-220 heat sink aluminum heatsink. The product include 20pcs heat sinks + 20pcs screws. With screw holes and screws, can be fixed MOS transistor. Applicable for MOSFET triode transistor etc. Specification: Name: MOSFET Heatsink Material: Aluminium Length: 30mm / 1.18 inch Size: 23.5x15.8mm / 0.92x0.62 inch Color: Black Package Includes: 20 Pieces Heatsink 20 Pieces Screws Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. SKU: FUZ0026727577016630.Applicable for MOSFET triode transistor etc. 20 sets MOSFET tube heat sink. 23.5x15.8-30MM Transistor To-220 heat sink aluminum heatsink. With screw holes and screws, can be fixed MOS transistor. Material: Aluminium.