• Metal
• Ultra sharpness and double hardness blade, Perfect for hobby, DIY projects, cardboard, carpet, Rope,boxes, wallpapers, vinyl, rubber, leather, PVC material and etc
• Quick-change mechanism. REXBETI new work knife comes with an easy blade release mechanism that allows you to safely change the blades and helps prevent injury
• Back-lock Mechanism. Box Knife features a lock back release function as a pocket knife that keeps your blade in a safe position when opened or closed
• Extra 20-piece blades included. Made of SK5 material. Handle provides comfortable grip.
• 4 colors - Red/Black/Yellow/Blue