This SFX 179 Muscle Brush is creatively angled and textured for painting multiple lines in unison. Perfect for striations in muscles and many other organic patterning. The bristles and brush adhesives are specially formulated to withstand most solvents and brush cleaning solutions. This brush is great for special effects makeup. Achieve flawless, reality-defying looks with the SFX series. The brush is also eco-friendly and 100% cruelty free! Includes: muscle brush Materials: bamboo handle, vegan synthetic bristles, and aluminum ferrule