功能:集中注意力,锻炼记忆力,协调左右脑,提高四指灵巧度,增加脑供血,消除身心疲劳,培养节奏感和韵律感,培养想象力和形象思维能力。如果集体一起做,可增强配合协作能力。适宜人群:幼儿、小学生 Function: focus attention, exercise memory, coordination of left and right brain, improve four fingers dexterity, increase brain blood supply, eliminate physical and mental fatigue, develop rhythm and rhythm, develop imagination and image thinking ability. If you work together, you can enhance collaboration and collaboration. Suitable crowd: children, school children