Muhammet Zahir Beratoğlu continues his art of “Zerduzi”' (Sim Sırma), which he started as a hobby since his childhood, in his studio in Bahçelievler. At the exhibitions he attends, he tries to promote the art of “Zerduzi” in the best way. The world’s largest handicraft “Yasin-i Şerif”, which has been the subject of many television and newspaper articles, is still on display.