thumb|right|Women's single game Roliball, ( also known as Bailong ball (), is a racket , ball and net sport. The racket has a silicone membrane and the ball is made from rubber and is partially filled with sand. The goal of the game is to land the ball on the opponent's side and prevent it from falling on your own half of the field. Contestants can be two players (multiplay single) or two pairs of players (pairs of the same sex - multiplay double, pairs of mixed sex - multiplay mixed).
thumb|right|Women's single game Roliball, ( also known as Bailong ball (), is a racket , ball and net sport. The racket has a silicone membrane and the ball is made from rubber and is partially filled with sand. The goal of the game is to land the ball on the opponent's side and prevent it from falling on your own half of the field. Contestants can be two players (multiplay single) or two pairs of players (pairs of the same sex - multiplay double, pairs of mixed sex - multiplay mixed).
== Origin and development== Roliball originated in 1991 in China, Shanxi Province, Jinzhong City. Initially it was developed as a method of rehabilitation of injured athletes. A new rehabilitation method was invented by the professor of physical culture and sports Bai Rong.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).