Description: Made of high quality Aluminum. Reduce the risk of hardware failure due to overheating. Maximize surface area Designed in contact with the cooling air. Anodized white enhances heat dissipation, processing broken fine teeth to enhance heat dissipation. Used for LED chip 2W heat dissipation, and semiconductor heat dissipation such as Raspberry Pi IC. Specification: Product Name: Heat Sink Material: Aluminium Color: Silver Tone Size: 14x6x20mm / 0.55*0.24*0.79'' Package Includes: 50Pcs Aluminum Heat Sink