Item Type: 2 x NAB Hub AdaptersMaterial: Aluminum Alloy + PlasticColor: Grey White (Polished)Applicable Size: 10inApplication: Universal Reel to Reel Tape Recorders NAB Reel Hub Adaptors, for Studer ReVox, for Akai, for Teac, etc.Package List2 x NAB Hub Adapters 1Wide Application: Universal reel to reel tape recorders NAB reel hub adaptor is suitable for Studer ReVox, for Akai, for Teac, etc. 2Exquisite Craftsmanship: The aluminum alloy NAB hub adapter is exquisite craftsmanship, polished metal handle, with a size of 10 inches. 3Superior Performance: NAB hub adapters feature lockability, no looseness, high standards of rotational concentricity and no wobble. 4Premium Material: NAB hub adaptors are made of aluminum alloy and plastic material, lightweight, rustproof, with sturdy construction. 5Easy Installation: Reel to reel tape NAB adapter is simple to install, requires little effort to complete. Will not damage the original accessories.