只需一步,快速开始
Kevin John Nadolny为跑步者设计的铃铛戒指(Runbell ),黄铜制作,佩戴在食指和中指上,跑步遇上挡道行人,只需用大拇指拨动小铁锤,就能发出响亮的铃声,告诉他们“让一下”,让跑步更顺畅。
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