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The insole sheath can make inside of shoe clean, dry and cool, fix insole and fit insoles of different lengths, and the heightening insole possesses heightening function.
它能保持鞋内卫生、干燥、凉爽，也能适应长短不一鞋垫的套用，并具有固定增高功能的鞋垫套和鞋垫。
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