Features: - This tool can made the mooring cables work become simple and feasible. - This tool can adjust the distance between mooring cables in a control range. - The diameter range of the three-eye pulley which can be installed auxiliary is 3.5mm - 10mm, and the distance between the upper and lower three-eye pulley mooring cable is 10mm - 30mm. Specifications: Length: 70mm Width: 55mm Height: 7mm Material: Wood, metal How to use: Combine the part 1 and 2 with glue , and fix with screw First, determine the distance between the tops and bottom of the three-eye pulley set you are going to make, And the actual distance of the blue arrow point to the blue line in the figure below. Then loosen the auxiliary slider tightening screw (the red circle position in the figure below), Then slide down and down according to the blue arrow direction to adjust the slider, align the scale line on the slider (the yellow circle above) to the distance you actually need, tighten the tightening screw to fix the slider, and then proceed to the following steps; Hold the three-eyed pulley in front and back of your finger and insert it into the fixing groove of the pulley of the auxiliary device from the side. Package Included: 1* Wood Ship Model Kit Notes: 1. Manual measuring, please allow 1 ~ 3mm error, thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.