Features: 1.7 Inch: This is an empty tape reel for use with reel to reel tape players. This reel fits on any open reel deck that 1/4 7 inch diameter tape. 2.3 Hole Design: 1/4 7 inch empty reel, aluminum for NAB flange with 3 wind resistant holes for added strength and resistance to bending. 3.Perfect Replacement: Restore your tape recorder or replace it with a new reel to give you perfect sound quality for Recording, erasing, re recording, etc. 4.Professional Design: Tape empty reel is professionally designed with accurate and low noise to meet your needs. 5.Aluminum Alloy: Empty reel is made of aluminum alloy, which is wear resistant and not easily damaged. specification:Item Type: 1/4 7 Inch Empty Reel Material: Aluminum Alloy Applicable Tape: 1/4in Reel Diameter: 7 Inch Number of Holes: 3 Holes Applicability: Universal PackageList:1 x 1/47InchEmptyReel NoteEven with a 7 inch capacity deck, a deck NAB hub adapter is required for any NAB volume.