Description The product is a hand generator for physical and electrical experiment use. Manufactured with the purpose of durability, this product would spend eminently long period of time with you. Smooth surface, no burr, stable longevity.They are not easy to damage. Exquisite workmanship with favorable price. Features - Color: Assorted Color- Material: Magnet, Plastic, Metal- Size: About 30.5x20.5x20.5cm/11.99x8.06x8.06inch- This is a portable, hand-operated, rechargeable emergency power generator.- High strength, corrosion resistance and durability, can generate electricity steadily.- Hand power generation is convenient to use and operate.- Lightweight, reasonable size, easy and convenient to move and store.- It is safe, no harm to human health. You needn't worry about its safety.Packing list: 1 x Hand Generator2 x wire