Training with Gymnastic Rings is widely spreading in clubs and fitness centers. It does not need big spaces, it is efficient and low cost. Gravity force plays a key role for this training. Two rings supported by strong bands, which are provided, with an easy closure mechanism that makes this kit ideal for suspension training.• Available in two different types: Wood or Plastic• External diameter of the ring: 23 cm• Diameter (thickness) of the ring: 2.80 cm• Length of the supporting band: 4.50 meters