DURABLE WITH ABS CONSTRUCTION - The rings are made of high-density high quality material for ultimate durability and security (load capacity up to 1,760 lb.), the threaded rings ensure outstanding comfort while making sure there is zero slippage even when sweating ADJUSTABLE FOR DIFFERENT NEEDS - The 2 rings are secured by premium straps with adjustable buckles (adjustable up to 15 ft.), and the buckles come with teeth for improved load capacity as well as safety, fully accommodating different users and spaces EASY TO INSTALL - Specifically designed and manufactured so that all users can easily complete installation in less than 5 minutes, just hang around any solid piece of wood or steel, slide in the sling underneath the buckle, and find the appropriate strap length for you, then you are good to go IMPROVE YOUR HEALTH - As a total body workout, you can do tons of movement with our gymnastic rings including pull-ups, push-up, dips, rows, muscle ups, chest flies etc., improving flexibility, heals back problem, promotes digestion PORTABLE FOR EXERCISE ON THE GO - Perfect for CrossFit and strength training for men, women, and kids, hang it anywhere and start working out at the gym, the park, in your backyard or even when you are traveling for work Weight: 1300g colour:Black Material:ABS+webbing size:Outer diameter 23.1CM, handshake width 2.8CM, hanging width 2.5CM Package Contents: 2 x fitness rings 2 x adjustable sling ropes Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.