No purchase necessary to enter raffle. You can pick up one free raffle ticket the day of the show at the show location or you can request one free raffle ticket by mail. Additional raffle tickets are available for purchase at the show. Must be present the day and time of the raffle to win. To request one free raffle ticket, please send a self-addressed stamped envelope to ReefStock Denver Attention Free Raffle Ticket: 708 East Wing St. Arlington Heights IL. 60004