Large, Plastic Compartment Box, 18 Opening, Overall Dim: WxDxH (In.) 13-1/8 x 9 x 2-5/16, Compartments / Opening Size: (12) 2-1/16 x 2-1/16 x 2-1/16(6) 2-1/16 x 4-3/16 x 2-1/16