Crafted from flexible silicone for expressive application. Mini blade is mounted to an artist brush handle but can be removed for easy cleaning. Designed for heavy-body acrylics and mediums but can also work with oils acrylics water miscible oils plaster clay and even frosting. Heat-resistant for encaustic work as well. Easy to wipe clean and solvent resistant. FDA-approved silicone. White mini blade in shape 4 (angle).