10 double-sided approval sheets. Both sides with 8 clear pockets for big stamps up to 29 mm height. Stable, plasticiser-free hard foil: 0.4 mm black base film (great contrast to the white stamp perforation), clear strip 0.08 mm. Nearly standard A4 format: 220 x 297 mm. Usable pocket size: 195 x 29 mm, opening upside. With 4-ring standard holes. 80-80-80 mm hole spacing. Fits into any standard ring binding. Variable storage system for collecting objects of all kinds.