DESCRIPTION: 100% brand new and high quality SET OF 2PCS gymnastics rings Black anti-skidding metal rings with the perfect rubber surface feel 2.5m strap with Crampons to keep the excess strap in one place Gymnastics Rings thickness:Approx. 30mm Ring inner diameter:Approx.14.5 cm ; Ring outer diameter:Approx.20cm (international standard) Telescopic belt length:Approx.2.5 m ; belt width :Approx.4cm A bayonet can freely adjust length. Ring bearing weight:300kg Rings material: Metal,rubber INCLUDED: 1x Pair of Gymnastics Rings with Belt 2x Crampons