Features: brand new and high quality Nab hub adapters for revox opener are packaged in a pair to meet your usage need. Nab hub adapters are lockable, no looseness, high standard of rotational concentricity, no wobble. Made of plastic material, strong construction, not easy to damage, long service life. Easy to use without excessive effort, just remove the product and use it. Universal opening machine accessories are made with excellent workmanship and perfect fit, giving you the best experience. Specifications: Material:Plastic Color:Black Application: For Revox Open Size:Approx.6x3x3.5cm/2.36x1.18x1.37inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pair Nab Hub Adapters