ITEM NAME:3Pcs Heat Sink 14*14*5mm/ 8*8*5mm Aluminum Heatsink Radiator+Copper Heatsink Description: - Material: copper+Aluminum - Function: heat dissipation - Product Size:13*12*5mm/14*14*5mm/8*8*5mm - Just tear off the paper and you can use it with confidence. - Be careful to stick it on the side of the capacitor to avoid short circuit - Specially designed for Raspberry Pi, it's function is to cool down the board and make your Raspberry Operate better. Package Included: 1Pcs Copper Heatsink 3Pcs Aluminum Cooling Heatsink.3Pcs Aluminum Cooling Heatsink. 1Pcs Copper Heatsink. - Material: copper+Aluminum. - Product Size:13 12 5mm/14 14 5mm/8 8 5mm. - Specially designed for Raspberry Pi, it's function is to cool down the board and make your Raspberry Operate better.