On a scratch auction, you must scratch the auction to see the current price. Each time a participant scratch the auction the product´s price is lowered. Once you scratched, you have a certain period of time, usually 10 seconds, to decide whether you want to buy the product for that price or not. The auction ends when a participant buys the product. You may have the courage to wait for a really good and low price – but do not wait too long because then maybe someone else purchase the product before you!