Get your workspace organized with this handy and portable with this 73 compartment storage unit. Storage box comes with four trays with 18 compartments and one large storage space. Features Include: Four trays each with 18 compartments*. One larger storage compartment. Dimensions: 7.125 x 11 x 10.25 inches *each individual square compartment is 1.25H x 1.5W x 1.5L.