Features:_x000D_1.The pure aluminum heat sinks include adhesive thermal tape for efficient thermal transfer to the heat sink providing additional cooling to the IC._x000D_2.The heat sink have profiles which are short enough to fit within standard Raspberry Pi cases._x000D_3.The heat sink can be applied in other devices such as the BeagleBone to cool processor, regulators, etc._x000D_4.Used for Raspberry Pi 4 model B+,2B._x000D_5.The surface is smooth and exquisite, and the buckled card slot is perfectly designed._x000D_Description:_x000D_Material is good, safe and durable_x000D_Easy to install and convenient to carry._x000D_Specifications:_x000D_Material: Aluminum Alloy_x000D_Fit:For Raspberry pi 2/3/4B_x000D_Package included:8Pcs For Raspberry Pi Aluminum Heatsink Heat Sink Computer Cooler Radiator_x000D__x000D_