Trade Days Flea Market

flea market
A market, typically outdoors, selling secondhand goods
A flea market or swap meet is a type of bazaar where inexpensive or secondhand goods are sold or bartered. It may be indoors, such as in a warehouse or school gymnasium; or it may be outdoors, such as in a field or under a tent.
an open-air street market for inexpensive or secondhand articles
a group of stalls selling old furniture or clothes.

trade
Buy or sell (a particular item or product)
(esp. of shares or currency) Be bought and sold at a specified price
the commercial exchange (buying and selling on domestic or international markets) of goods and services; "Venice was an important center of trade with the East"; "they are accused of conspiring to constrain trade"
the skilled practice of a practical occupation; "he learned his trade as an apprentice"
Buy and sell goods and services
engage in the trade of; "he is merchandising telephone sets"

days
the time during which someone's life continues; "the monarch's last days"; "in his final years"
(day) some point or period in time; "it should arrive any day now"; "after that day she never trusted him again"; "those were the days"; "these days it is not unusual"
A period of twenty-four hours as a unit of time, reckoned from one midnight to the next, corresponding to a rotation of the earth on its axis
The part of this period when it is light; the time between sunrise and sunset
(day) time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"
The time spent working during such a period