Sofft Tools are designed for artists and crafters to hold and release the right amount of pastel color for smooth, vibrant results. Developed for use with PanPastel Colors, these tools can also be used with most water-based art and craft materials for a variety of unique marks and effects. The various tool shapes allow for precise marks, blending, layering and more. This starter set contains a plastic knife, five knife covers and two sponge bars. Sofft knives are designed similar to a traditional painting knifeâ€”one that can be transformed into a multi-use and absorbent applicator for art and craft techniques with the use of the innovative covers.