Vision training wear beads ; Amblyopia training wear beads
Necklace problem
thread beads
1、珠子规格:球形珠子为主,不规则珠子为辅,珠子孔的直径1mm---2mm,珠子颜色多样。 2、穿线规格:尼龙材质,直径0.5mm,长度600mm,以正红与绿色为主。