Features: Brand new and high quality A variety of welding fixing block can realize the installation and fixation of various pen-type electric soldering irons. Because main part is aluminum profile, it is strong, low in cost, and reduces later maintenance cost. The appearance can also be decorated according to user needs. The tool use tension spring to automatically resets the electric iron, which plays a protective role and is simple, practical and easy to replace. The structure use 4 set of pulleys to ensure that the soldering iron can be pressed down smooth and without jamming during work. The upper and lower limit are used in the structure, which can be adjusted according to the working conditions to ensure that the soldering iron presses down limit during operation and not damage the workpiece. Specifications: Material:Metal Plug:UK/EU/US Size:Approx.300mm/11.8inch Package Includes: 1 Set Press Heat Insert Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.