Kocaeli is a province in Turkey located in the Marmara region, and it has a rich cultural and industrial heritage. Here are some of the best things to buy in Kocaeli: Industrial Products: Kocaeli is known for its industrial production, particularly in the automotive, chemical, and petrochemical industries. Some of the top industrial products to buy in Kocaeli include machinery, automotive parts, and plastics. Local Foods: Kocaeli is famous for its traditional foods, including the delicious "pişi" (a fried dough pastry), "simit" (a circular bread with sesame seeds), "keşkek" (a type of porridge made with meat and wheat), and "sakızlı muhallebi" (a type of milk pudding flavored with mastic gum). Handmade Crafts: Kocaeli has a rich history of traditional handicrafts, including weaving, embroidery, and ceramics. Some of the top handmade crafts to buy in Kocaeli include rugs, kilims, pottery, and wooden furniture. Fresh Produce: Kocaeli is home to many farms and produces a variety of fresh fruits and vegetables. Some of the top items to buy in Kocaeli include cherries, plums, tomatoes, peppers, and cucumbers. Local Wines: Kocaeli is also known for its local wineries, producing high-quality wines from grapes grown in the Marmara region. Some of the top wineries to visit in Kocaeli include Kocaeli Şarapçılık and Suvla Wines. Note: These are just a few suggestions, and there are many other things to buy in Kocaeli. It's always a good idea to ask locals for their recommendations as well.