Professional Cable Tester Network Computer Maintenance Repair Tool Kit Toolbox Suitable for your computer maintenance and repaired Network Installation Tool Kit -- Includes LAN Data Tester, Stripper, Utility Knife, and Hard Case Includes crimping pliers, wire stripping knife, flat /cross screwdriver, stripping pliers knife, punch-down tool, network cable tester and RJ45 connectors. Designed for use with telephone lines, alarm cables, computer cables, intercom lines, speaker wires, Material: durable hard metal and plastic.