Specification: Material: Birch, Polyester Color: Log color ring, Black webbing Weight: 1400g Load capacity: 350kg Size: Ring: br/>Wire diameter: 28MM Outer diameter: 23.5cm Inner diameter: 17.9cm Webbing: 25mm*4.5mm*1.8mm Package include: 2*Gymnastic Rings 2*Straps EXCELLENT CAPACITY AND DURABILITY: 2.8cm Standard Gymnastic Rings are made of birch. The load-bearing capacity reaches 350kg load-bearing capacity, strong and durable, unbreakable after long-term use. The surface of the gymnastics ring has been carefully polished to be smooth and non-slip to protect your hands and ensure safety. TRAIN BODY CORE STRENGTH: Gymnastic rings allow you to develop the strength of different parts of the body (such as chest, back, abdomen and arms ) through various postures such as pull-ups, push-ups, rows, push-ups. etc. Not only can relax muscles, but also improve core strength and coordination, but also improve posture and shoulder health. SUITABLE FOR MANY OCCASIONS: Paired with door anchors, you can use the door to exercise at home or work out with other fitness equipment in the backyard, basketball court, sports field, gym and other places to enjoy the fun of exercise.