A product management display system for merchandising product on a shelf includes a trackless pusher mechanism that travels along at least a portion of a surface on which product is placed. The pusher mechanism of the invention also includes a pusher surface for pushing the product. A flat coiled spring or other biasing element may be operatively connected behind the pusher surface and extend across a portion of the shelf. In use, the product may be placed on the coiled spring. The invention may be used with the merchandising of product on horizontal or non-inclined shelves or surfaces, as well as with gravity-fed systems, or systems that use gravity as a mechanism to urge product toward the front of the shelf.