Specification: Item Type: NAB Hub Adapters Material: Aluminum Alloy, ABS Applicable Size: 10 inches Applicable: For StuderReVox, for Akai, for Teac, etc. Reel to Reel Tape Recorders How to Use: Remove the product and use it. Package List: 2 x NAB Hub Adapters See moreStable Performance: NAB hub adapters are lockable, no loosening, high standards of rotation concentricity and no shaking. Premium Material: NAB hub adapter is made of aluminum alloy and ABS material, the structure is strong, not easy to damage. Simple Operation: The universal loading device for StuderReVox is easy to install, easy to use, and requires very little effort. Compatible: Reel to reel tape recorders NAB reel hub adaptors can be used for StuderReVox, for Akai, for Teac, etc. to meet your various usage needs. Fine Crafted: The aluminum NAB hub adapter is exquisitely crafted and fits perfectly, with a polished metal handle and black ABS base, and comes in size at 10 inches.