The flexible blades on these Mont Marte Stainless Steel Palette Knives are devoid of a cutting edge. They lay down flat color and produce excellent impasto effects when used in conjunction with brushes when applying paint to a canvas or other painting surface. On your palette, they can also be used to mix paint, mediums, and pigments. Ideal for acrylic and oil paints. Perfect for artists of all skill levels. Five excellent sizes. Blades that are flexible. Nothing innovative.