Function: 1. Application: Aluminum NAB Hub Adapters can be used for Studer ReVox, Akai, Teac and more to meet your different usage needs. 2. Aluminum alloy: The universal 10 inch opener is made of premium aluminum alloy, the structure is strong and sturdy, not easy to damage. 3. Black Polish: Replacement for 10 inch size polished aluminum opener, the black polish is well made to fit perfectly. 4. Easy to install: Universal loading device is easy to install, simple and easy to use, requires little effort to complete. 5. Lockable: Universal NAB Hub Adapter is lockable, no looseness, high level rotational concentric and wobble. (No base) How to use: Remove the product Specifications: Item Type: NAB Hub Adapters Material: Aluminum Alloy Color: Black (polished) Applicable Size: 10" Fits: Reel to Reel Tape Recorder Universal NAB Reel Hub Adapter for Studer ReVox, Akai, Teac etc Package List: 2 x NAB Hub Adapters