A reserve price is a price a donator can set when they donate an auction item. It’s the minimum price they’re willing to accept for an item. If the bidding doesn’t reach this price, they aren’t obligated to sell the item.
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 their auction item at a price that they feel is too low.
The reserve price is hidden from buyers, but some sellers include it in the item description or tell buyers who contact them and ask what the reserve price is. However, sellers aren’t obligated to reveal their reserve price.
Until the reserve price has been met, the listing shows the message Reserve not met.