Beech Wooden Rings: Used high density beech wood and more stronger than ordinary wood, grips more comfortable, stronger than plastic and better grip feeling than plastic rings. With smooth and anti-slip materials, no worry about your hands get sweaty when you do exercise. 28mm Diameter Rings: The diameter of rings are 28mm,makes your hand more comfortable when you use it,and the nylon webbing straps is 2.5cm wideth × 450cm length. High-strength Nylon Strps with Buckles:Sturdy Nylon Webbing Straps with quick-lock buckles which is more convenient to adjust the length. Fit for Different Exercises: Multiples exercises can be done on these gymnastic rings, such as Push-ups, iron cross, dips, pull-ups and any more, meet your different training requirements. Good Solution for Building Muscles: It's also an effective solution for some forms of physical therapy,because ring training activates your muscles in such a coordinated way. PELLOR Olympic Gym Rings 28mm DIA Wood Gymnastic Rings with Number And Buckles Straps For Upper Body Strength Fitness And Bodyweight Exercising Suspension Training - LSQIQ0IP