This set contains 10 premium large moving boxes measuring 18" x 18" x 24", which feature handles and a designated writing area, plus 6 medium moving boxes measuring 18" x 14" x 12". The large moving boxes are made from recycled corrugated fibers with a 32 ECT rating for strength. The medium boxes are professional-grade moving boxes. Both box types are simple to assemble and seal using adhesive tape (sold separately). The large boxes come with handles and a write-in space for noting contents or adding instructions