Packin' SMART 2-Tier 3-Pack 18-Piece Set Contains 3 caps with handles, 6 removable dispensers, 6 - 3oz containers, and 3 removable bases Top rack dishwasher safe Tritan and polypropylene (BPA, phthalate, PVC and lead free) Stack as little or as many containers as needed with interchangeable lid, base, and containers Single touch secure click design allows to stack and separate containers easily compared to screw design