Kooki and Kooksa are the characters of the Kachiran brand, which are designed to better connect the audience with the brand.

Due to the huge use of different groups of contacts and even those who have nothing to do with the purchase or product of sewing machines, from communication applications such as Telegram or WhatsApp, sticker design with different emotions and applications was done by Kohlin Studio. This method has had a great impact on introducing the Kachiran brand.