The Easy-Cut Safety Cutter Replacement Blades are made using high-quality carbon steel and provide up to three times the normal workload. It includes a unique radius blunt blade for preventing user injury and product damage. The sharp edge of the blade allows up to 5000 feet of use. It easily slices through cardboards and makes the cuts accurate and perfect. The blade comes in an easy-to-open dispenser with built-in spaces for storing the depleted blades.