Feature:1. Applicability: Aluminum NAB hub adapters are available for Studer ReVox, Akai, Teac, etc. to meet your various usage needs.2. Lockable Design: NAB hub adapter has lockability, no looseness, high standard of rotational concentricity and no wobble.3. Superb Craftsmanship: The 10 inch opener is superbly crafted for a perfect fit, green polish and comes in a 10in size.4. Sturdy Construction: The NAB hub adapter is made of aluminum alloy and plastic materials for a sturdy construction that is not easily damaged.5. Easy to Install: This for Studer ReVox universal loading unit is easy to install and simple to use in just a few simple steps.Specification:Item Type: 10 Inch OpenerMaterial: Aluminum Alloy, PlasticColor: Green (Polished)Applicable Size: 10 InchesApplication: for Studer Revox , for Akai , for Teac Etc.Package List:2 x 10 Inch Openers