Product description Spring Steel Threading Devices --- cable, network cable, wire, concealed metal threading devices, electrician pulling devices, long term use, short distance pulling devices. Easy to Solve Wiring Problems --- easy to solve all kinds of complex pipeline wiring problems, whether it is the wiring of under-floor wiring slots, or pipeline ceiling wiring, as well as pipeline wall wiring, network cable wiring, etc. Material --- The material is made of spring steel with three layers of solid springs, strong recovery, strong bending force, long enough length, strong toughness, 360 without dead ends, multiple right angle bends, and no fear of complicated wiring. Flush Hook Cable --- the flush has a large aperture that allows multiple cables to be run at once. It is also easier and more convenient to tie the cables. Suitable for wiring and installation of large diameter pipes. Applicable Pipe Diameter --- wire diameter 4.02mm, suitable for all kinds of PVC pipes and other plastic pipes, metal pipes, etc. General indoor wiring pipes can be used, which do not allow bare wiring and can easily lead to the threader not being able to be threaded. SPECIFICATIONS Material: Three-layer solid spring Wire diameter: 4mm Length: 5M (16.4ft) PACKAGE 1* Universal Wire Lead Threading Device Tool