Professional manufacturing, it is very safe to use. It is a universal tool for ethernet network cable crimp, safe and reliable, and an indispensable accessory for crimping. Precision crimping tool is made of durable iron and rubber material for any ethernet or telephone cable. Features -Color: Assorted. -Material: Iron, rubber. -Size: About 19.00X10.50X2.00cm/7.47X4.13X0.79in. -Note: Random Color of the Accessory - Ethernet crimping tool provides long term durability and performance, durable in use. - Ethernet cable pliers feature comfort grip handle provides for a fatigue-free crimping experience. - Fast, reliable ethernet crimp tool with sturdy construction for durability with ergonomic comfort grips. - The is easy to use and has a high success rate. Suitable professional engineer or DIYers. - Our network crimping tool is handy for the installation, service, and repair of a local area network in your home or office. Package list: 1 x cable plier 20 x crystal heads 20 x covers 1 x wire stripper 1 x tester