Specifications:Compatible Models: Studer, ReVox, Akai, TeacReel Size Support: 1/4 and 10.5 reelsMaterial: High-grade plasticColor: BlackDimensions: Standard NAB hub sizeQuantity: 2 hubs per setFeatures:1. Universal Compatibility: Designed to fit a wide range of reel-to-reel tape recorders including Studer, ReVox, Akai, and Teac models for maximum versatility.2. Lightweight Construction: Crafted from lightweight yet resilient plastic, ensuring convenient portability without compromising structural integrity.3. Precise Alignment: Engineered for seamless reel alignment, ensuring smooth playback and optimal tape tension during operation.4. Secure Grip: Equipped with a firm locking mechanism to hold reels firmly in place, eliminating vibrations for improved audio performance.5. Quick Installation: Simple and hassle-free installation process, allowing users to set up their system in seconds without additional tools.Package Included:2 x NAB Reel Hub Adapters(The other items are not includes, for reference only)