Indoor playground also known as naughty castle, is based on the early development of children of various nature and characteristics of the design of a new children's play products, through a combination of science and the formation of three-dimensional design into, is a set of play, sports, educational, health and other functions as one of a new generation of children's play center. According to early child development drilling, climb, jump, run, roll of nature, and some children's toys to foster children after combining various habits of a comprehensive recreational facilities. Not only can cultivate various interests of the child, the child's physical exercise, but also to achieve the effect of the development of intelligence. http://www.qilongplay.com/