<ul><li>Size: Motor Diameter: 20.7mm Motor Height: 25mm. Shaft diameter: 2mm, shaft length: 8mm</li><li>Testing voltage: 3V-9V</li><li>3pcs DC 3V -9V 140 Motor 3000-9000 RPM For DIY</li><li>This is a DC Small Motor</li><li>This motor kit is provided with high quality metal shell, hard and tough, which has a long lifespan.</li></ul> Operating voltage: 3-9V No-load speed: 3000-9000 rpm No-load motor per minute: 35-90MA incloud: 3 packs

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