Item Type: Opener Material: Aluminum Alloy, ABS Style: Red Base Applicable Size: 1/4 10 Inches Scope of Application: For Studer ReVox Open Reel Recorder Applicable Brands: Used for Revox, for Akai, for Teac, etc. Package List 2 x 10 Inch Opener 1[Applications] NAB hub adapters are available for Studer ReVox B67, for Akai, for Teac and other reel to reel tape recorders, open reel recorders for your various usage needs. 2[Fine Workmanship] Aluminum NAB hub adapter is superbly crafted to fit your open reel recorder perfectly, with polished metal handle and red base for 10in size. 3[Lockable] The 10 inch opener has a lockable quality, no looseness, with a high standard of rotational concentricity and no shaking. 4[Sturdy Structure] 1/4 10 inch opener is made of aluminum alloy, ABS base and rubber ring, sturdy structure, not easy to damage and resistant to wear and tear. 5[Easy To Install] For Studer ReVox's universal loading device is easy to install, simple and convenient to use, no complicated tools, and requires little effort to complete.