ABS plastic storage compartment is resistant to heat, impacts and chemicals. Built-in divider system allows you to create mini-compartments. Strong clip with card holder. Self-locking latch keeps contents secure. Holds Paper Size: 8 1/2 x 12; Clipboard Actual Size: 9w x 1 1/2d x 13 1/2h; Clipboard Material: Aluminum; Clip Capacity: 1/2 in.