#8 Oval brush head - The ultimate acrylic sculpting brush! Tapers to an exacting point perfect for details and clean, crisp smile lines. 100% natural Kolinski bristles - Firm, resilient, high-quality bristles provide excellent liquid retention and effortless sculpting. The ultimate travel brush! Artisan-made, metal brush handle and cap reduces to 4 ½ inches! Features a spring mechanism inside brush cap to maintain proper fit use after use.