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.