Remo M7-1250-F6 12.5-Inch Tucked Fiberskyn Conga Drumhead, F6 Original tone qualities an added durability with Remo's patented tucked construction Durable drum head that can withstand extreme amount of tension that is needed for many of world percussion instruments Remo's tucked heads technology is a process in which the film is wrapped around a steel insert ring just as animal skins are "tucked" around flesh hoops F6 Film 12.5" diameter