Create your own paint marker with these quality refillable marker bodies empty paint markers are ready to be filled with your choice of Angelus acrylic paint mixed with Angelus 2-thin (1: 1 ratio) pump action valve allows you to control the flow of paint it will be necessary to thin most colors with 2-thin to achieve the proper consistency; if it is the thickness of milk, it will generally need thinning down will not work with Neon's or metallic Dual-Sided replaceable tip features a chiseled tip on one end that's great for creating shapes and lines and a rounded tip on the other end that's perfect for small details and line work