This form of commerce was called furiuri ("furi" literally means "swing" and "uri" means "sell") derived from the image of vendors who walk around to sell goods and services while shouldering a carrying pole with bamboo sieves, wooden buckets, wooden boxes or baskets hung at both ends.
ざる、木桶、木箱、カゴを前後に取り付けた天秤棒を振り担いで商品またはサービスを売り歩く様からこう呼ばれる。