Unverified85% confidenceDecision RuleTime unknown
珠孔直径与穿绳配比：木质串珠孔径≥6mm、绳头配硬质包塑或木质穿引棒，2-3岁幼儿手部协调差，孔径过小（<4mm）会导致反复失败而放弃
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Unverified串珠孔径应比绳头硬化段直径大1-2mm，孔径过小（＜4mm）会导致3-4岁儿童反复穿不进而放弃，孔径5-8mm配硬质包胶绳头最易上手91% similarUnverified珠孔直径与穿绳直径差需≥1.5mm，孔太小2-3岁孩子穿不进易受挫，孔太大珠子易滑落；大孔木珠孔径建议8-10mm配棉绳89% similarUnverified2-3岁初学者应选珠孔直径≥6mm、穿绳头带硬质塑料包头的产品，孔太小或绳头软塌会导致穿不进而挫伤兴趣86% similarUnverified钩口内径（开口宽度）需≥拟悬挂物挂环直径+3mm，橱柜挂杆常见杆径10-12mm，衣柜圆杆多为25mm，购买前必须实测杆径否则挂不稳或卡不进80% similarUnverified拼块厚度是耐用性关键：木质拼图厚度≥8mm、纸板拼图厚度≥2mm，薄于此易被幼儿掰弯或咬坏，边缘会起毛脱层78% similar
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