The bendir, bendayer or alloun is a percussion instrument very widespread in North Africa (especially in Tunisia, Algeria and Morocco), very present in Berber music. It is a frame drum quite similar to the daf found in Asia, being part of the membranophones. Popular instruments, mounted on a lightweight frame with rather thin goatskin stretched over it. Casings are attached to the frame so as to have a skin sound with a "timbre", like on a snare drum.