[Easy to Use and Save Time]One side is connected with a cable. The red wire cap can prevent the wire from loosening when pulling. Another side is connected with fish tape, which makes wire and fish tape tightly connected. You save time by quickly pulling the cable and pulling multiple wires [Perfect Flexibility and Rigidity]The insertion coil is made of plastic-coated steel, has non-conductive plastic coating structure, , flexible, and has good flexibility. It not break when bent, strong traction, resistance to aging and less abrasion [360° Available Head Wheel]The head strap at of the electrician's probe is 360° usable and easy to pass through the bend, connection method makes it and easy to use. Spring roller, easier to put on and faster than normal thread [Application]Cable insertion aid for conductors or power cables in cable protection tubes and pipes. perfect for routing cables through conduits, pipes, ducts and ceiling voids [Scope of delivery] You receive 1 x cable pulling aid with 1 guide spring, 10 m long and 4.5 mm in diameter, sufficient for everyday use