the invention provides a retail sales package adapted for mounting on a peg display . the package is formed of two opposed sheets of plastic . at least one of the sheets of plastic is formed with a cavity into which a card and a product are placed . one of the sheets is printed on its inside surface . the two sheets of plastic are brought into contact and sealed together at their peripheral edges . a hang hole is formed during sealing and has its periphery sealed to form a fused edge . the printed card or paper is placed into the cavity with the product prior to the second sheet being sealed to the first sheet . the invention further provides a method for assembling the opposed sheets of plastic by placing them sequentially on a tool having protruding pins adapted for only allowing selected sheets to be mated .