Specifications:

Raspberry Pi Fan:
Fan Size: 30x30x7mm
Rated voltage: DC5V
Operating Voltage: DC 4.5V - 5V
Air volume: 5 m3/h
Number of revolutions: 13200RPM
Noise: 18 dBA
Connector: One-to-Two pin
Bearing: Double miniature superfine bearing

Raspberry Pi Heatsinks:
Material: Aluminum
Quantity: 8Pcs
Size: 4Pcs 14x14x7mm + 4Pcs 9x9x5mm
Applications: Raspberry pi development board and other electronic chip auxiliary cooling

Package Included:
4 x Raspberry Pi Fan with Screw and Nut
8 x Aluminum Heat Sink with 3M Adhesive Tape