Master Mahmut Handmade Classical Kuka Tesbih 33 . Kuka is appreciated all across the Muslim world and has been used for centuries. We call this bead shape “starling” in Turkey but collectors from other countries call this bead shape “Istanbul Eye”. Beads measuring 9×12 mm. It is ideal size for collection also for daily use. Master Mahmut was apprentice,student of Master Metin. He is young and talented craftman.