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.Item Type: NAB Hub AdaptersMaterial: Aluminum AlloyColor: Silver (Polished)Applicable Size: 10 InchSuitable: Universal for Reel to Reel Tape Recorders NAB Reel Hub Adaptors, for Studer ReVox, for Akai, for Teac, etc. (Without Base) Package List2 x NAB Hub Adapters