COSCO Products - COSCO - Easycut Self Retracting Cutter Blades, 10/Pack - Sold As 1 Pack - Prolong the life of your knife with a new blade. - Provides a fresh edge for reliable cutting every time. - Safety-tipped blade. Prolong the life of your knife with a new blade. Provides a fresh edge for reliable cutting every time. Safety-tipped blade.