A 66 block is a punchdown block containing rows of four IDC style clips. It is used for terminating 22-26 AWG solid copper cross-connect station wiring for many types of phone systems. Bridge clips are required to complete the circuit between the left and right side of the 66 block. * Dimensions: 10' (L) x 2.5" (W) x 1.5" (H) * 50 pairs 66 wiring block

Dimensions: 10' (L) X 2.5" (W) X 1.5" (H). 50 Pairs 66 Wiring Block. Use: The InstallerParts Punch Down Blocks is great for use from landline phone networks, to connecting to PBS systems, to terminating a lot of wires for a lighted walkway or for any similar applications. Easy Installation: Fast and easy to install even for non-installers. All you need is a punch down tool and you are good to go. Connect Voice and Data Network Wiring: Cross-connect other telephone punch-down cabling easily with our punch down block.