Features Compact Size: The compact size of this heatsink means that it is easy to carry around and can be easily stored when not needed without taking up too much space. Safe Using: The enhanced safety of using the heatsink allows it to withstand greater work strength, improves performance, and makes the experience of using it more optimized for its capabilities. Scope of Application: Suitable fitting for model A, B, B+, 2, 3, 4 boards, compatible with most for cases, and can also be used for PC, CPU, and graphics card cooling. Good Heat Dissipation Performance: This heat sink has a thermal conductive tape backing, good heat dissipation performance, and can be durable under normal operation and use. 8Pcs in Package: With eight heatsinks in one package, there are enough heatsinks for your daily use and enough heatsinks to replace them when the time comes to continue replacing them. Specification: Item Type: Cooling Copper Heatsink Material: Pure copper Individual Size: Approx. 13 x 12 x 5.5mm / 0.51 x 0.47 x 0.2in Package List: 8 x Heat Sink Note: 1. This product is designed for heat dissipation of memory particles, if you need to use it for other heat dissipation purposes, please determine whether the size is suitable.2. Please clean the stains, dust and oil on the exterior of the IC before use, otherwise it may not stick firmly.3. This product is a conductive metal, please do not touch the surrounding components when installing.4. Purchase and install this product, please make sure that the product you are using chip is not smaller than this product.5. After moving or shaking the machine, please check whether the heat sink is completely attached to the chip. Package List 8 x Heat Sink