Remo Emperor Ebony Drum Heads are made of one ply of 7.5-mil Ebony film on the top, and one ply of 7-mil clear film underneath - a combination that will give you a classic, bright Emperor sound with a slick black look and a slightly crispier attack. Emperor heads fly right down the middle in terms of sustain, with a fairly high durability and a noticeable amount of attack at the front. Drummers who play fast and loud really love these heads. Size: 12".