The Remo 10 12 13 and 16 Rem-O-Ring Set make it easier to control overtones on your tom and snare drums due to the consistency of the Mylar skins. Rem-Os are a quick and easy way to help control your drum sounds whether youre playing live or in the studio. Constructed of Mylar® they are incredibly weather resistant and extremely durable. These Rem-O packs are available in 12" 13" 14" and multi-packs.