Structure in metal and polypropylene. 16 compartments (8 on each side) in translucent polystyrene, for documents in size A4. Useful dimensions of 1 compartment: H 19,8 x W 22,5 x D 2,4 cm. 4 revolving wheels. Total dimensions : H 167,5 x W 30 x D 38,5 cm. Easy assembly without screws.