1. Professional RJ45 Crimp Tool Kit - Designed for 8P8C RJ45 CAT6 CAT6A CAT5E CAT5 pass through connector. Cuts, Strips, and crimps twisted pair round UTP/STP Ethernet cables all in one tool. 2. Focusing on - The main body of Ethernet crimper made by High carbon steel material with heat treatment process. And the blade is made of steel. It is sharp, durable and replaceable. 3. Pass Through Technology -RJ45 pass-through crimp tool for pass-through RJ45 connectors with success rate, and significantly reduces prep work time, make a Ethernet cable more easy. 4. RJ45 Connectors and Ethernet tester - Comes with RJ45 cat6 pass through connectors for cat6 cat5 cat5e 24~26AWG network cables. Ethernet Cable Tester for RJ45/RJ11/RJ12 cables(9V battery not included). Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.