Description Carbide Utility Blades stay 10 times sharper than traditional utility blades. The steel body helps to prevent breaking of the blade.Longest lasting blade stays sharper 5X* longerImproved durability and wear â lasts more than 5 times longer than competitive bladesTungsten Carbide Powder Deposited Through a High Powered Laser WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov