Item Type: NAB Hub AdaptersMaterial: Aluminum Alloy, PlasticColor: Red (Polished)Applicable Size: 10 InchesSuitable: Universal for Reel to Reel Tape Recorders NAB Reel Hub AdaptorsFor Studer ReVox, for Akai, for Teac, etc.Package List2 x NAB Hub Adapters1SCOPE OF APPLICATION: Aluminum alloy NAB hub adapters are available for Studer ReVox, for Akai, for Teac, etc, to meet your various usage needs. 2LOCKABLE: This NAB hub adapter features lockability, no looseness, high standard of rotational concentricity and no shaking. 3POLISHED: A pair of openers with 10 inch size. Superb workmanship, red polish and precise sizes ensure a perfect fit. 4STURDY AND DURABLE: The 10 inch openers are made of aluminum alloy and plastic materials, with a strong structure that is not easily damaged. 5EASY TO INSTALL: The loading device is easy to install, universal for reel to reel tape recorders, simple and convenient to use.