Dive Rite - Titanium Sliding D-rings are a great way to add accessory or cylinder attachment points to any standard 2 inch wide harness webbing. The rings can be easily adjusted during
XDEEP Sliding Metal D-ring for Sidemount Harness
D-Rings, Belt Slides, and Clamps | Dive Gear Express®
Adjustable D-Ring for Sidemount Diving: The "LB-Sliding Ring" - YouTube
Dive Rite NOMAD LS SIDEMOUNT SYSTEM - Dive Zone LLC
Sliding d-rings dive rite titanium with razor webbing : r/scuba