Sindjel Center organizes trainings for future tattoo and piercing masters. Theoretical part of the training covers all the necessary knowledge: from needle production processes and inclinations, over skin aftercare, sterilization procedure, to tattoo designs and introduction to tattoo and piercing techniques. Upon completion of the theoretical part, participants are awarded Sindjel Center diplomas. Practical training for a master is a conducted separately, on which occasion a special contract with the Center is entered into.