This is a set of fishing line tool, include 1pc fishing line knotter and 1pc fishing line hook distance measurement ruler. They are made from material, which is lightweight and durable, easy to carry anywhere. Features - Color: Black - Material: Plastic, silicone - Size: About 8.00X8.00X0.50cm/3.14X3.14X0.20in - The shape is isosceles right-angled triangle, the hook distance is measured at the of the pin can be adjusted. - It is easy for one hand operation, designed for one-hand operation when another hand is holding other tools. - The silicone part in the middle of the small slot can be clamped untied sub-line. - The ruler of the middle part is tight and does not damage . There are two spare on the side. - And fishing line can be clamped into the groove for use in hook binding. Package list: 1 x Knotter 1 Measure Ruler