Features: Make from Metal materials, Enduring and corrosions resistant. The special inverted hook and Circle hook designs significantly improves hook rate. Unique designs increases the chance of hook touching the fish's mouth, improves the capture rate, and make fishing easy. The use of wear-resistant bright silk thread have good flexibility and reliable tensile resistance, effectively improving the fishing effect. It can used for various fishing method such as boats fishing, and sea fishing to meet the needs of different fishing condition. By using this fishing hook, you can better control and adjust the fishing position, and improve the fishing effect. Specifications: Materials: Metal Styles: 10/16/20 10 hook door size: about 1x1.50cm/0.39x0.59inch 16 hook door size: about 1.5x2.50cm/0.59x0.98inch 20 hook door size: about 2x3cm/0.79x1.18inch Package Includes: 20pcs Double Fishing Assist Hook note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.