Features: Keep your device cool with this set of 8 heat sinks. Made from copper materials, these heat sinks feature a slotted design for efficient cooling. The radiator comes with thermal conductive tape for easy assembly. Ensure the safe operation of the equipment. The heat sink is easy to assemble. Perfect for your device.Passive cooling architecture design - can achieve perfect heat dissipation. Improve your device's cooling efficiency with these reliable heat sinks and enjoy better functionality. Specifications: Material: Copper Color: As Pictures For RPI 5 mainbard Cooling Pad Size approx : 2PCS 17x17x5mm/0.67x0.67x0.2inch 2PCS 15x10x5mm/0.59x0.39x0.2inch,2PCS 13x12x5mm/0.51x0.47x0.2inch, 2PCS 5x5mm/0.2x0.2inch quantity: 8PCS Package Includes: 8PCS Heat Sinks note: Note: The mainboard is not included. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment