1.5 meters. It is marked on the children's ticket standard of Zhuji Xiangsheng Buffet that the height is 1.5 meters, and children under 1 meter are free, half price between 1 meter and 1.5 meters, and full price above 1.5 meters. Zhuji Xiangsheng Buffet refers to the buffet dinner of Zhuji Xiangsheng Century Hotel, which is a high-quality brand hotel.