Unverified85% confidenceDecision RuleTime unknown
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
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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92% similarUnverified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85% similarUnverified18-36月龄选螺丝直径≥3.5cm的大颗粒款，防止误吞；36月龄以上可用直径2-3cm的中号螺丝；6岁以上才适合<2cm的精细螺丝拼装78% similarUnverified常见标准吊牌尺寸约4×6cm至5×8cm，穿绳孔径3-4mm并需打孔加固（铜圈/爆花）防止撕裂，无加固孔在蜡绳拉力下易撕破76% similar
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