The ND6K is a 6 digit Automatic number stamp used for standard office applications. It is a very strong and reliable machine in which the numbers advance automatically. It is a self inking stamp made from high quality plastics and is therefore very sturdy. The 6 digit number stamp automatically rotate due to it’s premium alloy wheels. The date is printable on the right hand side of the stamp and character height is 4.5mm. Actions can be 0x, 1x, 2x, 3x, 4x, 5x, 6x, 12x and 20x repetition and the imprint starts at 0 and goes up 999999. Customers also like the Reiner B6 as it is similar although it has less functionality.