A company sells various size jewelry boxes that are in the shape of cubes which volume of cubes has rational numbers side length

Some examples of jewelry boxes that would fit this description are:

- A 3 cm x 3 cm x 3 cm cube
- A 5 cm x 5 cm x 5 cm cube
- A 10 cm x 10 cm x 10 cm cube

These jewelry boxes have rational number side lengths because their dimensions can be expressed as simple fractions or decimals.