A reserve price is a minimum price a seller is willing to accept for their listing. If the bidding doesn't reach this price, they are not obligated to sell.
Sellers might use a reserve price because it allows them to set a low starting price to generate interest and bidding but protects them from having to sell at a price that they feel is too low.
Reserve prices are hidden to bidders.
Bidders will see “Reserve Met” next to the item price if a reserve has been met.