HIGH QUALITY：The cable winding tool uses high-quality gold-plated steel to support the rigidity of the clamps. After black oxidation treatment, a dense oxide film is formed on the surface, so there is no need to worry about sea oil corrosion or occasional rust.4 Crimping Positions & 2 Hardened Side Clamps：4 crimping positions include: easy crimping copper/aluminum sleeves, 0.5-0.1mm, 0.1-0.5mm, 1.0-2.0mm, 2.2mm and 50-450lb test line.Product features: non-slip handle, cushioned safety lock, stainless steel handle, non-slip pad and safety rope. The safety lock can be easily closed. It helps you cut the frame/monofilament and the strong spring opens the knife when the handle is opened.150pcs Aluminum Double Ring: The double ring aluminum sleeves are easy to use and easy to operate, just lock the ends with a film, pliers or compression tool. For different sizes of stainless steel cable bundles for deck rails, proper crimping can withstand a load of 200 pounds.Package Content:You will receive 150 pairs of double tube ferrules, crimping tools in 3 sizes in a square carton. The combination of crimping tool and cylinder sleeve can be widely used in wire rope, cable pulling straps, etc.