A container comprising a first compartment, an overcap, and a second compartment is provided. The overcap is configured to operatively engage with the first compartment. About 12˜40 vertical grooves are disposed on the second compartment. This second compartment is also configured to operatively engage with the overcap and, in doing so, a displayable space is therein defined. The displayable space is configured to enclose a promotional package such as, for example, a sample package of roast and ground coffee. The container exhibits advantages of a larger displayable space volume without sacrificing the strength of the container, and without the need to use additional resin material.
