Made from a single 14-mil-thick ply of Mylar film, Remo Ambassador X14 Coated heads are among the thickest in the percussion industry - especially for being a single ply! It's perfect for really heavy hitters, but versatile enough to suit any style of music. Break your heads a lot? Look no further. The coated surface gives the head a slightly muted, darker tone, and is perfect for brush work.