Professional gymnastic rings, suitable for strength trainingsWith buckles and firmly straps, strong and durableTraining rings are good for childrens height growing, can also promote their brain development, conducive to the blood supplyHeavy duty, ideal for bodyweight exercises at home or gymLoad Bearing: 120 KGRecommended Age: 3 years old and aboveMaterial: Plastic, PE, ironAdjustable Length: Approx 93-180cm / 36.6-70.8inchRing Inner Height: Approx 11.5cm Ring Outer Height: Approx. 21cmStrap Diameter: Approx. 1cm Size Chart: Adjustable Length: Approx 93-180cm / 36.6-70.8inchRing Inner Height: Approx 11.5cmRing Outer Height: Approx. 21cmStrap Diameter: Approx. 1cm Package Includes: 2 x Gymnastic Rings2 x Straps(with buckles) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.Due to manual measurement, there may be 1-2mm error in size.