OlfaGraphic Art Knife Set (AK-4) - Precision Hobby Craft Knife Kit (1 Knife & 4 Blades) w/Cushioned Grip, Replacement Blades: OLFA KB, KB4-F/5, KB4-NS/3, KB4-R/5, KB4-S/5, KB4-WS/3 Art Blades

OLFA Graphic Art Knife Set (AK-4) - Precision Hobby Craft Knife Kit (1 Knife & 4 Blades) w/Cushioned Grip, Replacement Blades: OLFA KB, KB4-F/5, KB4-NS/3, KB4-R/5, KB4-S/5, KB4-WS/3 Art Blades

OLFA 6mm Multi Purpose Art Knife Blade Set, 25 Blades (KB) - Precision Hobby Craft Knife Replacement Blade Kit for Crafts, Graphics, Models, Miniatures, Stencil, Fits Most 6mm Art Knives

OLFA Designer Graphic Art Knife Set (AK-5) - Precision Hobby Craft Knife Kit (1 Knife, 30 Blades, 1 Needle) for Art, Crafts, Scrapbooking, Scoring, Stencil, Replacement Blades: OLFA KB-5 Art Blades