Online consignment works much the same way that consigning in a brick and mortar consignment shop works. You are the consignor and owner of the items. I, acting as the consignee, take possession of the items and put them up for sale, most commonly on EBay, one of the world's most well-known and most-visited websites. When appropriate, Facebook Marketplace can also be used.

I will take your items, photograph them, research the current marketplace to determine the best offering price, post them on EBay (or other mutually agreeable site), and then handle customer service, and packing and shipping the items when they sell.