(1) 100 Pair Hinged Wiring 110 Block, (2) Label Holders, (2) Destination Labels, (4) Cable Organizers, (4) Cable Ties, (4) Head Tapping Screws, and Installation Instructions.High density wall mounted cross connect system designed for voice and data applicationsHinged design allows block to swing open for easy access behind the block without removing the block from the wallEasy system administration with designation labels and label holdersUL Listed and ROHS Compliant