Features: brand new and high quality Aluminum heat sink, which is suitable for electronic, computer, electrical facilities, for play a cooling effect. Aluminum heatsink heat sink cooling fin, for ideal to be used for cooling LED, Power IC, Power Amplifier,and Transistors etc. Durable Material: Alloy aluminum oxidation greatly improves the corrosion resistance, hardness, wear resistance, insulation, heat resistance of the cooler, and prolongs the service life. Easy to install: Make precise and close fitting, easy to install, and not damage the hard disk. You can send it as holiday or birthday gifts for your friends to give them a surprise. Specifications: Material: Aluminium Alloy Size: Approx 65x15.5x100mm/ 2.56x0.61x3.94inch Package Includes: 1pc Aluminum Radiator note: 1. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.