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儿童手套尺寸按掌围选：XXS约6cm对应3-4岁、XS约7cm对应5-6岁、S约8cm对应7-9岁；宁可略紧不可过松，过松会丧失抓握灵活性并易脱落

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Unverified手指、儿童小关节固定用3-5cm宽，成人手腕/前臂用5-8cm，成人下肢及大范围固定用10-15cm，选宽度需按缠绕部位周长匹配以保证平整贴合84% similar Unverified标准打腿练习浮板尺寸约30x40cm厚3-4cm，适合5岁以上或身高110cm以上儿童双手握持；3-5岁幼儿应选缩小版（约25x30cm）避免板过大双手握不稳而翻覆82% similar Unverified圈环内径建议12-16cm适合1-2岁抓握，直径过小（＜10cm）幼儿手掌抓握困难，易失去兴趣；大圈环还能兼作方向盘、手镯等一物多玩81% similar Unverified3-5岁选15寸（Soprano，全长约53cm），6-8岁选17寸（Concert，约58cm），9岁以上或成人陪练可选21寸；判断标准是孩子手臂能环抱琴身且左手能自然按到品格81% similar Unverified成人标准打腿浮板长度28-32cm、宽度18-22cm较通用；儿童及初学者应选24-28cm小尺寸以便双手握持稳定81% similar

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