During a trade, you are only allowed to sell or buy a certain amount of items at once. This number varies based on the type of trade you're doing, how much you've donated to scrap.tf, and whether or not you're a priority member. You can view your limits by going to our Help page [scrap.tf] whilst logged in.ormally, you send someone a trade request (or they send you one) and then you trade. With scrap.tf, in order to ensure fairness, we use a queue system. The queue is fairly straightforward; when you request a trade via scrap.tf, it adds you to the queue.