Akro-Mils 33105 Akro-Grid Slotted Divider Plastic Tote Box, 10-7/8 -Inch Length by 8-1/4-Inch Width by 5-Inch Height, Case of 20, Grey Injection molded from polypropylene block copolymer which resists most solvents and chemicals Strong stacking rims and external ribbing provide added strength to hold up to 25 lbs Dividers allow sub-division of the containers, down to a 1-1/4-Inch square compartment size Accepts up to (5) optional 42105 length dividers and (7) optional 41105 width dividers Made in the USA