Ring workouts build muscle, core strength, stability and coordination that comes from intense concentration and focus during ring exercises due to their instability. Those wooden rings not only grip better, also feel great on your hands and than plastic. You can use these with a pull up or your power rack to start doing ring dips, pull ups, , etc. Feature - ColorBlack - Material: ABS - Diameter: 23x23x8cm - Bearing Capacity: 400KG - Solid rings are smooth to touch and have no snags or of any kind, allowing for excellent grip and no slip, even with sweaty palms - Help you with full body workouts that all your muscle groups to work together. Practice pullups, pushups, dips, rows, and so much more. - Durable wood gymnastics rings will last you years - Those rings work as an effective adjunct to some forms of physical therapy, as ring training activates so many muscles in such a coordinated way. - Warm Tip: Dear buyer, Due to lighting effect,monitor’s brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 2 x rings 2 x Nylon Belts