The Remo Pinstripe Clear Bass Drum head is made from two 7-mil plies with an overtone-reducing agent between them at the outer edge. It gives you an internal muffling system that dampens unwanted high frequency overtones for warmer resonance..Remo Pinstripe drumheads have long been the most popular, all-around drumhead for the drumset. Two-ply heads sound great, are durable and easy to tune. These heads are internally muffled to dampen both high overtones and overall resonance. The result is a very focused, low pitched sound with moderate attack and response characteristics that are ideal for creating a deeper, fatter, controlled drum sound in a variety of studio and live drumming situations.