Karin Brushmarker PRO - Sapphire Blue extremely fluid, water-based, non-toxic marker with a fine brush tip filled with vibrant, water-based ink. These brush markers are ideal for calligraphy, hand lettering as well as illustration and watercolour like techniques. Liquid ink technology - do not change the intensity of colour to the last drop and allow to control the amount of paint on an ongoing basis. Equipped with Japanese super durable and flexible nylon tip - brilliantly responsive to changes in pressure and direction.