Item Type: NAB Hub AdaptersMaterial: Aluminum Alloy, PlasticApplicable Size: 10 InchesSuitable for Studer Revox, for Akai, for Teac and Other Reel to Reel TapesPackage List2 x NAB Hub Adapters 1Widely Compatible: 10 Inch opener available for Studer ReVox, for Akai, for Teac and other reel to reel tape recorders to meet your various usage needs. 2Fine Crafted: NAB hub adapters are crafted for a perfect fit with polished metal handles and red bases for 10 inch size. 3High Stability: Universal loading device has lockability, no looseness, high standard of rotational concentricity and no wobble. 4Premium Material: NAB hub adapters are made of aluminum alloy and plastic materials for a sturdy construction that is resistant to damage. 5Easy to Install: The 10 Inch opener is easy to install, simple to use and requires very little effort to complete.