The present invention provides an assembly, or kit, of injection molded components having integrated connectors which combine to form a storage container having a plurality of snap-in spherical roller assemblies and a cooperating lid member. The storage container components are formed of injection molded plastic and include integrally formed connectors to interlock with one another without the need for separate fasteners. The integrated assembly of the bottom storage container panel and the spherical roller assemblies simplifies storage container construction and minimizes the number of components required to complete the assembly.