Walmart offers six Whitmor Wire Storage Cubes in black or white, model no. 6070-968, for $22. (Amazon has it for the same price with free shipping for Prime members.) Opt for in-store pickup to avoid the $5.97 shipping charge. That's the lowest price we could find by $6. Each cube measures 14.25" x 14.5" x 14.5" and can be connected to the other cubes.