Some film holders can hold more than two sheets. One of the most common is the Grafmatic, manufactured by Graflex, which holds six sheets of film in individual septums. They were available in "23" and "45" models, corresponding to 6×9 cm (2¼×3¼ inches) and 4×5 inch sheets. It takes little effort to quickly cycle through all six sheets, which makes the Grafmatic ideal for press camera usage. Burke & James produced a similar device called the Kinematic, which holds 10 sheets, though was only available in 4×5 inch format.