Suitable sizes: blue (4-6 mm); black (6-9 mm); red (9-12 mm); green (12-15 mm); white (15-18 mm); yellow (18-25 mm). The bright colors make it easy to find and pull the wire. However, due to the different friction forces of each wire, if a wire falls out, you can use tape to secure it after installation to increase friction. Premium material: galvanized stainless steel, lightweight, high tensile strength, won't damage the wire, convenient to use. Strong yet flexible and time-saving, allowing you to pull all cables effortlessly. The pull is smooth and jam-free, making it convenient to store in your toolbox. Functions: The unique wave variable mesh automatically adjusts its gripping force, providing a non-slip pull and protecting wires from damage. Make pulling cables and wires through pipes, conduits, etc., quick and easy. Widely used: The cable pulling sock is an ideal tool for electricians and telecommunications technicians, significantly saving labor. During electrical installation,