Innovative design, mechanical energy is transformed into electrical energy, and new hand generator All ball bearings are used, with long service life. Disk type cored generator High purity enamelled copper coil is used, with neat wire arrangement and exquisite workmanship The rotor adopts rare earth NdFeB strong magnetic field with strong magnetic field and high output power. The transmission synchronous wheel (1:3) is used<br><br>Colour:Silver Material:Metal<br><br>Package Contents: 1 x Hand Crank Generator<br><br>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 +/- 1-3cm.