Features: brand new and high quality You can straighten the CAT5, CAT6, CAT7 network cables and Rj11 telephone lines Untie the cables, and improve the efficiency of crystal for head production. You can also straighten the phone line and untie the line, which has a wide range of applications. It is a good helper for making the crystal for head of the network cable. Straighten, improve the efficiency of making crystal heads, and avoid headaches when doing more crystals Specifications: Product Name: Network Cable Stretch Device/Network Cable Release Device Product Material: Anti-oxidation Brass + Anti-oxidation Insulating Sheath Product application: for CAT5/CAT6/CAT7 Network cable and RJ11 telephone line Product Weight: 20.1g Product Color: Red/Yellow/Blue/Green/Black Product Size: approx Single for Head 12.5cm/4.92in Double Head:approx 12cm/4.72in Optional Type: Single for Head for CAT5 CAT6 / Double for Head for: CAT5 CAT6 CAT7 Package Includes: 1PC x Cable Straightener note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.