Rectangular grid, in acetal resin (POM), with lid provided with two safety locking points, removable. Writing surface. They resist to decalcifying solutions, to solvents and ultrasounds techniques. Prestacked cassettes in 40-piece rows held by an easy-to- remove tape to simplify insertion for an easy printer loading. Compatible with most of automatic printers (Leica IP-C, Printer Dualvision). Dimensions 40 x 28 x 6 mm. Printing front side at 45°.