The poor and other underserved populations in developing countries have unique financial service s needs. However, there is often a mismatch between what financial institutions offer and what underserved populations need or want. This product gap may reflect a lack of interest by financial institutions in designing more target products, or a lack of willingness or capacity on the part of financial institutions to design, market and implement tailor-made financial products. The objectives of the Product Design Case Studies are to 1) develop expertise related to product design and innovation processes through a better understanding of best practices in the field, in depth research and application of behavioral economics concepts; 2) increase awareness of product design/innovation and the links between product development and financial inclusion; and 3) generate publicity and knowledge sharing around product design and innovation. While the hand loan product was broadly successful in achieving its original intent, the pilot encountered considerable institutional and execution challenges that are instructive for future product innovation efforts. The first two sections describe the problem and the innovative product designed to address it. The next section describes the final design and implementation of the product in detail. The fourth section covers post-pilot data collection and results. The final sections discuss lessons learned and planned future enhancements.