Item Type: NAB Hub Adapter Product Material: Aluminum Alloy, ABS Style: Black Base Applicable Size: 1/4 10 Inches Scope of Application: Used for Studer ReVox Open Tape Recorder Applicable Brands: for Revox, for Akai, for Teac, Etc. Package List 2 x 1/4 10 Inch Opener 1APPLICATION: Aluminum NAB hub adapter can be used for Studer ReVox B67, for Akai, for Teac and other reel to reel tape recorder openers to meet your various usage needs. 2EXQUISITE CRAFTSMANSHIP: Aluminum NAB hub adapter is superbly crafted to fit your opener recorder perfectly, with polished metal handles and a black base for the 10inch size. 3LOCKABLE DESIGN: Opener universal loading device has lockable quality, no looseness, high standard of rotational concentricity and no wobble. 4STURDY AND DURABLE: NAB hub adapter is made of aluminum with ABS base and rubber ring for a sturdy construction that is resistant to damage and wear. 5EASY TO INSTALL: For Studer ReVox, the universal loading device is easy to install and convenient to use with little effort.