Features: 1.Cable threader can be used for right-angle pipe, wall groove, floor duct and other wiring installation. 2. The solid spring has good resilience, softness and tension, and is not easy to deform. 3. High-strength and high-toughness spring head with 360-degree dead angle design, cornering. 4.The crimped head is strong and hard to fall off. 5.This is the great tool to assist the cable through the pipe. Size Spring Head Total Length Spring Length 5M: 126mm 83mm 10M: 126mm 81mm 15M: 124mm 80mm 20M: 114mm 71mm 25M: 128mm 85mm 30M: 122mm 79mm Size Chart Size: : 5M Spring Head Total Length(mm): : 126 Spring Length(mm): : 83 Size: : 10M Spring Head Total Length(mm): : 126 Spring Length(mm): : 81 Size: : 15M Spring Head Total Length(mm): : 124 Spring Length(mm): : 80 Size: : 20M Spring Head Total Length(mm): : 114 Spring Length(mm): : 71 Size: : 25M Spring Head Total Length(mm): : 128 Spring Length(mm): : 85 Size: : 30M Spring Head Total Length(mm): : 122 Spring Length(mm): : 79 includes:1 x Wire Threader