Excel Blades #28 Heavy Duty Concave Carving  Hobby Blade, 5 Pack, American Made Replacement Craft Knife Blades High quality classic #28 carving hobby blades, 100% Made in the USA and engineered for heavy duty carving, whittling, and shaving of linoleum, plastic, leather, and wood with a unique curve that makes working around tight spaces much easier Perfect tool for graphic artists, designers, hobbyists, and arts and crafts applications - making it easy to adjust from rougher shaping cuts to more precision cuts without the need to change knives Versatile replacement blades fit all standard medium to heavy duty craft knives including Xacto Knife Includes a pack of five (5) #28 concave carving blades with 1.00 x 1.75 inch edge