This fabric knife from Fiskars lets you conveniently switch blades, allowing you to carry out varied tasks like making detailed cuts, ripping seams and cutting buttonholes. You can use this versatile knife to cut canvas, thread, linen, cotton, silk, upholstery and more. Details:Includes 3 bladesPlastic and steelSoftgrip touchpointsIdeal for precisely cutting common thread, cotton, silk, polyester, linen, upholstery, canvas and moreIncludes three essential fabric blades: one seam ripper blade, one standard #9 buttonhole blade and one standard #11 bladeEasy blade change lock makes switching blades virtually effortlessSoftgrip® touchpoints enhance comfort and controlErgonomic handle is contoured to your hand’s natural gripNo-roll design prevents knife from rolling off work surfaceIncluded safety cap protects blade during storagePackaging doubles as blade case for safe, convenient storageReplacement blades available: seam ripper blades (item 164030), standard #9 buttonhole blades (item 16404), standard #11 blades (item 196010)Full lifetime warrantyContents:Seam ripper bladeStandard #9 buttonhole bladeStandard #11 blade