The CMHOOKMW Multi-Directional Vertical Cable Management D-ring lets you add an internal or external facing cable hook to your server rack or cabinet, to provide an organized channel for cables. Constructed of high-quality steel, the cable management ring measures 2.4 x 3.9in (6 x 10cm). For flexible mounting options, the cable ring features a right-angled mounting bracket with 2 sets of mounting holes, enabling you to face the D-ring in the direction that best fits your application. Providing strain relief for attached cables, multiple cable rings can be attached to your rack where you need them for a versatile cable management solution.