Features: HIGH-PERFORMANCE. After the tie-up, the automatic hook tyer machine can be used directly for competition. There is no difference between strength and hand-binding. No creases are bent, the inside of the shank is tidy, the wire is neat, and the thread is short. The coil is tighter, the high-torque and low-speed motor is stable and does not loose, the coil is tightly superimposed; the amplitude is even, soft and noise-free. PROFESSIONAL DESIGN. Carefully design with novelty and beautiful appearance. 2 different options: Black Electric Fishing Hook Tyer Knot Machine ( Battery Powered ); Blue Automatic Fishing Hook Tier Tool ( USB Charging Powered ). QUALITY MATERIAL. Made of ABS-plastic and stainless steel materials, strong impact resistant, higher hardness. Lightweight and portable. WIDE APPLICATION. Increase tension strength between hook and line. Easy to use, avoid fishing line damaged by hook. Suitable for many types of hooks. Perfect for use in a Kayak and Ice Fishing. Specifications: Power Supply: Battery (Black); Charging (Blue); Built-in Battery: 300mAh Lithium Battery Battery Type: 2 X AAA-Battery Charging Port: Micro-USB Speed: 125 revolutions/min Color: Black; Blue Size: Approx. 11.5x6.3x2.8cm/4.52x2.48x1.1in Material: ABS-Plastic; Stainless Steel Weight: Approx. 83g-93g Package Includes: 1 X 1 X Fishing Hook Tyer Knot Machine note: Please allow 0-1cm error due to manual measurement. Due to difference between different monitors, the picture may not reflect the actual color of the item.