TO USE ON LAN AND TELECOM CABLES SEATING 5 PAIRS UTP (24 AWG) AT A TIME. SUITABLE FOR BOTH 110 TYPE CABLE SIDE AND CROSS-CONNECT SIDE TERMINALS BLOCKS. THE TERMINATION BLOCK HEEL WITH BLADES ARE CHANGABLE AND REVERSIBLE. ONE END FOR SEATING AND CUTTING OFF WIRES, AND THE OTHER FOR SEATING WIRES ONLY.