Product Description: 1. Application: hubs, designed for 1/4 5 inch reel to reel tape, outer ring diameter 47mm, inner diameter 8.2mm, thickness 10mm.2. Replacement: Used to replace reel to reel tapes old, aged controllers to enhance the performance of the device.3. With Mounting Screws: Reel to reel tape controller includes mounting screws to securely hold it in place for easy access to replacement part.4. : hub is made of professional CNC aluminum block with hard anodized finish to harden the of aluminum for long service life.5. Easy To Use: The controller is small in size and light in weight, does not take up too much space, easy to install and remove, convenient to use.Color: SilverMaterial: Aluminum AlloySpec:Item Type: Reel To Reel Tape ControllerOuter Ring Diameter: . 47mmThickness: . 10mmInner Diameter: . 8.2mm / 0.3inSuitable: For 1/4 5 inch Reel to Reel TapeThe actual object may have color difference due to different light or displayPackage Contents:1 x Reel to Reel Tape Controller6 x ScrewOnly 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.