Item Type: NAB Hub Adapters Material: Aluminum Alloy, Plastic Color: Purple (Polished) Applicable Size: 10 Inch Suitable: for Studer, for ReVox, for Akai , for Teac, etc Package List 2 x NAB Hub Adapters 1Universal Compatible: Universal NAB hub adapters for Studer, for ReVox, for Akai, for Teac, etc, to meet your various usage needs. 2Lockable: NAB hub adapters feature lockability, no looseness, high standards of rotational concentricity and no shaking. 3Premium Materials: This NAB hub adapter is made of premium aluminium alloy and plastic materials for wear and durability. 4Easy To Install: The 10 inch opener is a universal loading device that is easy to install and convenient to use, saving you time and effort. 5Fine Workmanship: Aluminum alloy NAB hub adapter has a polished purple appearance, is rust proof and has a sturdy structure.