Usage Tips:[Perfect Flexibility and Rigidity]The insertion coil is made of plastic-coated steel, has non-conductive plastic coating structure, durable, flexible, and has good flexibility. It will 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,Unique connection makes it durable and easy to use. Spring roller, easier to put on and faster than normal thread [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 [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 will receive 1 x cable pulling aid with 1 guide spring, 10 m long and 4.5 mm in diameter, sufficient for everyday use Colour:green Material:polyester Size:4.5mm x 10m Package Contents: 1 set x wire puller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.