For all documents up to size 24 x 32 cm. Very stable. Can be stacked vertically or with staircase effect. Very thick and rigid shockproof polystyrene. 2 label holders on the front side. Anti-slip pads protect the surface of your desk. Height adjustments optional. Dimensions: H 5,5 x W 27,5 x D 37 cm. colors: burgundy / crystal / black / cobalt blue or ice blue heightening: extra height 3 cm: in black or blue