High carbon steel materials, heat-treated and polishing jaw ensures tight and compression, improves durability for long-time use with rust protective. handle with nonslip grips bring power transmission, comfort to use with less effort. Suitable for handymen, fishermen, this tool Kits is for anyone who demands reliability in their equipment. Aluminum crimp sleeves wire rope from being crushed or over-stressed at ends, ensuring the protective of eyelets on steel cables or rope. If you have any questions about the product, please feel free to contact us via email., Manufacturer: ASerZenith