CONTAINS 4 RAZOR SHARP BLADES - Our craft knife set has 4 blades made from carbon tool steel for unparalleled sharpness and superior edge retention. Includes (2) KB4-S Precision Blades, (1) KB4-F Chisel Blade, and (1) KB4-R Curved Carving Blade. | CUSHIONED GRIP HANDLE - The pen-like hobby knife has an acetone resistant, non slip handle that delivers comfort and stability during use. You'll be able to work longer as these features help reduce hand fatigue. Designed for right and left-hand use. | QUICK SPIN BLADE CHANGE - Get back to creating beautiful arts and craft projects in no time with the simple quick-spin blade change. It allows you to quickly and easily replace dull blades or switch blade styles by turning the safety locking system. | DETAILED & INTRICATE CUTTING - This professional art knife provides accurate and reliable performance for delicate cutting needs. It's perfect for paper, vinyl, rubber, models, cardstock, foam, and more. | THE OLFA STANDARD - As the original inventor of the Snap-Off Knife, OLFA has maintained a standard of cutting excellence for our quality and durability. Pairing your OLFA Art Knife with OLFA Art Blades will provide optimal results.