Features: 1. Easy Interchangeable blades 2. 6 designs of safety blade cassettes 3. Double track aluminum construction 4. Swing-out extended ruler 5. Measurements scaled in cm and inch 6. Built-in storage compartment for blades 7. Durable and lightweight 8. Precise and accurate performance 9. Experience a new cutting pleasure 10. Cutting capacity: Straight blade trims up to 10 sheets