Yes, there is an option for "Pay After Delivery" for some types of transactions, and ebay and Tradesy qualify (as an aside, for some reason my orders from The RealReal do not and they withdraw funds immediately). Funds are withdrawn 14 days after the order so that there is time for the item to be delivered and you can make sure everything is as it should be. If I recall, you usually can turn on the option if you have a linked, confirmed bank account set up on your PayPal account. To use the option, I believe the funds need to be transferred directly from your bank account (if you keep a PayPal balance, that would not be used for Pay After Delivery).