U.G. PEN, DARK GREEN TM607 sun They are refillable and they

They are refillable and they come with four different metal tip sizes

run water through it to clean the passage way

hard abrasive material

When using the Laguna Underglaze Pen

and handles that will stay attached

U.G. PEN, DARK GREEN TM607 sun They are refillable and theyGlaze in the Laguna Underglaze Pen Series. Available in 1 fl. oz. applicator pens and 2 fl. oz. refills. Laguna Underglaze Pens were developed for cone 05 and 06 firings, however most of the colors do quite well at much higher temperatures. Our own testing has yielded the following results: Cone 06 04: Turquoise color remains strong and vibrant. Cone 6: Turquoise color remains strong and vibrant. Cone 10: Turquoise color remains strong and vibrant.