5x Automatic Wire Squeegee Spring Insulation Pulling Tool for Crimpers [Material]: steel spring. Steel spring with high strength, high tension and strong breaking. [High plasticity]: Automatic stripping of insulation from wires ensures even distribution, even force, stable elasticity and effectively increases work efficiency. [Easy to Use]: Simply push the spring into the center of the spring and then pull it out. is ready to use in seconds. [Prepared Professional]: Be prepared both at work and outside, thanks to the large amount of storage space for rescue equipment, two-way communication and other items. [Application]: Spare pull springs are widely used in various applications, e.g. at home, office, garage and other places. Specification: Material: stal stainless Size Chart: 2 cm /0.79 inch The package includes: 5 spare pullers