1. Compatible: Reel to reel tape recorders NAB reel hub adaptors can be used for Studer ReVox, for Akai, for Teac, etc. to meet your various usage needs. 2. Premium Material: NAB hub adapter is made of aluminum alloy and ABS material, the structure is strong, not easy to damage. 3. Stable Performance: NAB hub adapters are lockable, no loosening, high standards of rotation concentricity and no shaking. 4. Fine Crafted: The aluminum NAB hub adapter is exquisitely crafted and fits perfectly, with a polished metal handle and base, and comes in size at 10 inches. 5. Simple Operation: The universal loading device for Studer ReVox is easy to install, easy to use, and requires very little effort. Item Type:NAB Hub Adapters Applicable:For Studer ReVox, for Akai, for Teac, etc. Reel to Reel Tape Recorders How to use:Remove the product and use it. Colour:Blue Material:Aluminum alloy Size:Applicable Size:10 inches Package Contents: 2 x NAB Hub Adapters(The color of the circle is random,Not accepting designation) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.