Material type:Plastic Power source:Corded Electric, Battery Powered Item Weight:1 Kilograms High-precision mechanical structure, as small as 0.8 sleeve hooks to 13th isetny can be tied. No creases are bent, the inside of the shank is tidy, the wire is neat, and the thread is short. Material: PC engineering plastic shell Net weight: 62.5g Power: 2* AAA battery (Battery not included) Easy to use, avoid fishing line damaged by hook, help you to solve trouble of binding fishing line. Electric hook device, straight line to improve the efficiency of tie hook. The hooking process is smooth and does not sway, and the coils are tight The hooking process is smooth and does not sway, and the coils are tightly stacked. Uniform amplitude, soft and no noise. Power By: 2* AAA battery (Battery not included). PC engineering material is very durable, do not easy to aging.