Please make sure to select the proper bit trays for your packout. The Tool Box Packout has the same size bit trays. The Rolling Tool Box has one larger and one smaller bit tray. PERFECT DESIGN: Fits perfectly in your milwaukee packout rolling toolbox. SECURELY HOLDS YOUR BITS: Neatly and securely stores your bits MANUFACTURED FOR TOUGH USE: Made from rigid, lightweight tough plastic material for superior strength and durability Made in the USA and designed by benjamenjohnson, Milwaukee Packout Organizer is licensed under the Creative Commons - Attriubtion - Share Alike license.