Features of Swing Swivel: 1.Stainless Steel 2.360°swivel rotational device 3. Anti-corrosive 4.Easy installation and use 5.The maximum tension of 30kN (1000 lbs) ,up to 2,000lbs as Breaking Strength Tested Features of Carabiner: 1.Stainless Steel 2. Anti-corrosive 3.With Safety Buckle 4.Easy to use 5.The maximum tension of 30kN (1000 lbs) ,up to 2,000lbs as Breaking Strength Tested Package included: 2pcs Stainless Steel M10 Swivel Ring + 2PCS Stainless Steel M10 Carabiner with Safety Buckle