Sitting on it you will wobble more safely and enjoy more fun.Product name: SwingColor: blueDisc (D x T): Approx. 28*3.5 cm(11.02*1.38in)Rope adjustable length: about 93~170cm(36.61~66.93 in)1. Please check the color and size before buying.2. Product photos do not include products other than products.3. Please note that due to different monitors, there may be slight color difference, please forgive me.4. The above data is for reference only, the size is manually measured, the error is 1-3 cm, please allow, thank you.5. If you find any problems with our products, please feel free to contact us via email, we will solve this problem as soon as possible.6. Welcome to share and feedback to provide you with better services and products.