American Crew Precision Blend Haircolor - 3 Count Box This is a gray blending system for their unique needs and it gives you the ability to create the natural color men want in just five minutes. It is easy to use and apply on hairs. It fades to-tone with no brassiness, no line of demarcation, and 5 minute application with natural results. Recommended for all hair types. 5 Minute Process Time. Contains 3 tubes.