Stackable, corrugated cardboard file boxes that are sturdy enough for transport and storage microscope slides. The storage box has a double internal corrugated construction that suppports up to 250+ lbs. and the trays remain easily accessible. Each case contains 10 yellow, unassembled boxes with full assembly instructions printed on the bottom. Slide storage system has 4 drawers and can hold 2,000 slides in a box, 20,000 slides in a case. Dimensions: 12"(w) x 4"(h) x 11 1/2"(d). There is a well organized and detailed recording area on the front panel of the each box.