[Specifications] Manufacturer Part Number: HG-12-75 Divider Dimensions: 3.3 inches (85 mm) Effective Depth: 3.0 inches (77 mm) Width x Depth x Height (Outer Dimensions): 9.8 inches (250 mm) x 19.7 inches (500 mm) x 4.1 inches (1.10 kg) Partition Dimensions: Square dimensions are 2.8 inches (72 inches (72 mm)