Six nylon rollers provide smooth movement of cable and prevent cable damage. Pull pin makes opening and closing to insert and remove cables a simple one step operation. Adjustment clamp allows it to be swivel and/or rotated into any position. Heavy duty 12 gauge cold rolled steel construction for durability and zinc dichromate finish prevents corrosion. Up to 20 network cables can be pulled at one time. Easily attaches to wooden framing members using a lag bolt and the hole in the mounting bracket of the CR25. May also be used with coax, NM, small size THHN, and similar cables.