Typically, when an agent thinks a product could secure a good licensing deal, they will want to "shop it around." A good, well connected, agent will have multiple contacts in the industry and can negotiate the best deal he or she can with those contacts. Sometimes it is difficult to get more than one prototype sample from a new product design. You will want to try and secure at least 3 to give to an agent to get some good solid interested parties. If this is not possible, and only one is available, be prepared for the process to take more time.