Fangrui Product Details Diy Wind Power Generation Motor The Swinging Tail Design Will Rotate With Changes In Wind Direction Understanding Physics Knowledge Through Hands-on Production To Enhance Childrens Innovation Awareness And Ability Cultivate Childrens Thirst For Knowledge And Interest In Learning Size: Motor Outer Diameter: 24.5mm/0.96inch Motor Height: 31mm/1.28inch Motor Shaft Diameter: 2mm/0.079inch Motor Shaft Length: 13.5mm/0.53inch Saw Blade Diameter Is 60mm/2.36inch Blade Aperture: 1.95mm/0.077inch Total Size: About 20cmx13.5cmx9cm/7.87x5.31x3.54inch Finished Product Size: 200x190x130mm Output Voltage: Dc0.1v-3v Output Current: 0.01-0.3a Rated Speed: 200-6000 Rpm Power Generation Method: Direct Current Colour:yellow Material:plastic Package Contents: 1 * Diy Wind Turbine Generator Kit Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is