Rope: PE bag sealed swing ball (maximum inflatable diameter: 29CM), high environmental protection and safety performance/rope with integrated pressure port design, not easy to damage 1. The ball is made of PVC material with smooth and delicate surface and more comfortable. 2.PE rope, nylon rope optional, bright color, strong bearing capacity. 3, stable gravity, uniform force 4, bright and multicolor optional. 5. Multiple connection rings are optional, height adjustment is convenient, safe and reliable.