The Pinstripe Clear drumheads feature a medium tonal range with deep frequencies and increased durability. They are made of two layers of 7-mil clear film and are treated with an overtone-reducing agent applied between the two layers, providing overtone control with enhanced attack. The Pinstripe series is one of the most popular drumheads worldwide. Size: 22". Thickness: double-layered, smooth. Type: Bass Drum head, transparent. Finish: smooth / transparent. Sound: low sustain, very bass-heavy, round and balanced tone.