In china, you have a priority indoor sports and expansion park for children. China has created a more scientific, safe and high-quality interactive sports and recreation centre in step with the world. It integrates the world's popular trampling, rock climbing and outreach campaigns, with 40 m2 of land to accommodate 30 young children for sport and entertainment. The newer sports play technologies and concepts in europe and the united states have been used in all of your children's sports parks, bringing new experiences and challenges to chinese children, and the chinese market is a popular operation. Representing the world's relatively new concept of sport's health, and at the same time being a better quality education project for chinese children, it will be a major highlight in the area of sport and leisure for children. The halkac is not "passive" and requires proactive engagement to enable children to fully develop their physical flexibility, strength, creativity, self-esteem an...