1、APPLICATION: 1 pair 10 inch universal opener for Studer ReVox, for Nagra, for T Audio, for Teac, for Tascam, for Akai and other reel to reel players for your various usage needs. 2、EASY TO INSTALL: For Studer ReVox's universal loading devices are easy to install, simple and convenient to use, and require very little effort to complete. Enhance your tape playback experience. 3、LOCKABLE: NAB hub adapters feature lockability, no looseness, high standards of rotational concentricity and no wobble. Stable performance ensures long lasting reliable use. 4、EXCELLENT CRAFTSMANSHIP: Universal NAB hub adapters are well made to ensure a perfect fit, and have polished finish, suitable for machines up to 10 inches in size. 5、PREMIUM MATERIAL: 10 inch opener is made of premium aluminum alloy and ABS materials, exquisite appearance, sturdy structure, not easy to damage, abrasion resistant.