1[VERSATILE USE] Suitable for Cat5, Cat5e, and Cat6 cables with 8P8C plugs, ideal for RJ45, RJ11, RJ12 cable and telephone installation, as well as any other electrical wiring work. 2[50 PCS NETWORK HEADS] Comes with 50 pcs professional 8P8C crimping network heads, can present a beautifully crimped appearance for you. 3[COMPACT AND LIGHT] With compact size and light weight body, the network cable crimping tool can be easily operated by only one hand, saving effort. 4[MULTI FUNCTION] The network tool has the functions of crimping, cutting and stripping, highly practical, can complete various work tasks with just one tool. 5[WIDE PURPOSE] Designed for telephone lines, alarm lines, computer lines, intercom lines, speaker lines, thermostat wiring scanning. Item Type: RJ45 Crimping Tool Material: PVC, alloy steel Battery: 9V battery x 1 (shipped without battery) Applicable: 8P 6P crystal head crimping, 8P pass through crystal head crimping, cutting and stripping Function: It allows users to quickly and easily install computers and network adapters, repair network cables, and test the network. Crimping and cutting the cable simultaneously, convenient and time saving 1 x RJ45 Crimping Tool 1 x Network Tester 50 x 8P8C Crystal Head 50 x Crystal Head Cover 1 x Mini Stripper 1 x User Manual