Making a Best Offer On eBay
Many sellers will add "Best Offer" to their Buy It Now listings on eBay for additional chances at selling an item. Let's face it, as sellers, we want to sell the item, not have it sit in our eBay store.
When you make a Best Offer, the seller can either accept the offer, reject the offer or send you a counteroffer. You can make up to 3 best offers on an item. A Best Offer is good for 48 hours or until the listing ends, whichever comes first.