widely used: pure aluminum heat sink, which is suitable for electronic, computer, electrical installations, playing cooling effect FEATURES: High quality aluminum, light weight and high thermal efficiency. A complete molding, beautiful appearance, new and light EASY TO USE: Easy to install and use. Place this cooling fin under a mobile device to cool them TIPS: Use radiator adhesive glue to install the radiator (glue is not included). Please check the specification table and make sure the heatsink size matches your component Description: Material: Aluminum Color: Silver Dimensions: 40 x 40 x 20mm / 1.57 x 1.57; x 0.79;(L*W*T) plate thickness: 20mm Tooth Slice Thickness: 1mm Tooth spacing: 2.5mm Tooth quantity: 11 Package Include: 2 x Aluminum Heatsink Note: Due to the different display and the different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Please allow little differences due to manual measurement Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail. .Anqing store merchandise