Birlik Buttons – offers a wide range of sizes of the buttons produces. They may be of the following sizes:
| 9mm 14″ | 9,5mm 15″ | 10mm 16″ | 10,5mm 17″ | 11,5mm 18″ | 12mm 19″ | 13mm 20″ |
| 14mm 22″ | 14,5mm 23″ | 15mm 24″ | 16mm 26″ | 18mm 28″ | 19mm 30″ | 20mm 32″ |
| 21,5mm 34″ | 23mm 36″ | 25mm 40″ | 26,5mm 42″ | 28mm 44″ | 30mm 48″ | 32mm 50″ |
| 34mm 54″ | 38mm 60″ | 44mm 69″ | 44,5mm 70″ | 51mm 80″ | 54mm 85″ |