Abstract: An adjustable rack device includes four base leg members, a base frame engaged onto the base leg members for coupling the base leg members together, four tubular members engaged onto the base leg members and engaged onto the base frame for forming a two-layer structure, a shelf device includes a peripheral frame member and four corner barrels for engaging onto the tubular members, and a table plate may be engaged in the peripheral frame member of the first shelf device. One or more further shelf devices may further be attached onto the barrels for supporting the other table plates.

Abstract: A container includes a container member having an inner peripheral flange curved and folded radially and inwardly from a lower portion, a base plate engaged into the container member and having a peripheral recess for engaging with the peripheral flange of the container member, a frame engaged with the lower portion of the container member, and a bottom board engaged onto the frame and secured to the base plate for securing the frame between the bottom board and the base plate and for detachably securing the frame and the bottom board and the base plate to the lower portion of the container member and for cleaning purposes.