Super sharp and double hardness blade, very suitable for hobbies, DIY projects, cardboard, carpet, rope, box, wallpaper, vinyl, rubber, leather, PVC materials, etc. Comes with a 4-piece utility knife, foldable design. Ergonomic rubber handle always provides strong grip The blade storage design can be accessed easily and quickly. 3 additional blades stored in the handle Including an additional 20 blades Quick blade change mechanism