Markal 82421 WS-3/8 Paintstik REMOVABLE Solid Paint Marker/Crayon, Yellow (Pack of 12) Water soluble for easy removal Smaller diameter for finer line marking Ideal for the temporary marking of plastics, glass, metal, or aluminum surfaces Uses #107 holder (p. 33) Marking range: -50F to 150F (-46C to 66C); Size: 3/8" X 4-1/4"