Ultramax Lbb Blade By Olfa Is Exclusively Designed For Maximum Cutting Performance. These Blades Are Developed Using A Special Double Honing Process For Superior Sharpness And Are 25% Sharper Than Olfa S Standard Lb Blades. The New And Improved Blade Container Locks To Prevent Unnecessary Spilling. Each Blade Features 8 Cutting Edges Per Blade Strip And 400-Cutting Edges Per 50-Pack Of Blades. Ultramax Blades Are Perfect For Any Application Where Superior Sharpness Is Needed.