Adjustable 15mm Inner Dia Plastic 12 Vanes Motor Fan Vane Black 2PCS Country of Manufacture: CHINA; Material: Plastic Net Weight: 79g; Package Content: 2pcs x Fan Vane Brand: DMiotech; Main Color: Black Max Outer Diameter: 115mm/ 4.5"; Inner Diameter: 15mm/ 0.6" Height: 18mm/ 0.7"; Size: no