Feature: 1. APPLICATION: Polished aluminium opener is available for Studer ReVox, for Akai, for Teac, etc. to meet your various use needs. 2. 10 INCH: Polished aluminium NAB hub adapters with 10 inch sizes and silver polished, is superbly crafted for a perfect fit. 3. LOCKABLE: NAB hub adapters have lockability, no looseness, high standard of rotational concentricity and no wobble. (No base). 4. ALUMINUM ALLOY: 10 inch opener is made of aluminum alloy, the structure is strong and not easy to damage. 5. SIMPLE TO INSTALL: Universal loading device for Studer ReVox is easy to install, simple and convenient to use, and requires little effort to complete. Specification: Item Type: NAB Hub Adapters Material: Aluminum Alloy Color: Silver (Polished) Applicable Size: 10 Inch Suitable: Universal for Reel to Reel Tape Recorders NAB Reel Hub Adaptors, for Studer ReVox, for Akai, for Teac, etc. (Without Base). Package List: 2 x NAB Hub Adapters