DSJ-3011-3 Full Body Harness Accessories O-Ring, Heat Treated O-Ring for Webbing Full Body Harness Accessories O-Ring Forged steel,Heat treated 100% Proof loaded to 3600lbs/16kN Min. Breaking load: 5000lbs/23kN Net weight: 176g Meets or Exceeds: ANSI Z359.12-19 CSA Z259.12-16