Blocks: Cardboard simple fluting, clear gray filmed. H 25,5 x W 10 x D 35 cm. Sleeves:glossy card 5/10e. Big lateral indexage with magnifyer. Interiour pocket to bellows. Closing by rubber band. Choice between 5 different colours: gitane blue, orange saffron, curry yellow, ruby red, light green or mixture of differentcolours.