It can accommodate about 50 to 70 people at the same time. Most of the domestic situation belongs to amusement parks. Generally speaking, a 500-square-meter skating rink can accommodate about 50-70 people, which is enough in third-tier cities and counties with average population density. There are two kinds of skating rinks, one is paved with cement and used for roller skates (there are also two kinds, but they are used in the same place). The other is made of dry ice, which is used for blade skates.