Sparco Utility Knife Refill Cartridge

4" Length x 1" Thickness - Straight Style - Snap-off - Steel - Stainless Steel - 6 / Pack. Snap-off design ensures you always have razor-sharp edge. Strong metal construction is durable for lasting sharpness. WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.