Pivoting Coupler, 120 Degree with 5 Angles, heavy duty design and Stainless S… by | Jul 22, 2026This pivoting coupler will be always needed in anyway. pivoting coupler 5angles. Three Significant Upgrades: 1st: Upgrade brass pull pin to Stainless steel 304 Pull Pin (SUS304 safety lock),super hard and long durability!