We stock this in pints and gallons (which are most economical), and in a variety of primary colors which kids love! Underglazes are not shiny and should be covered with a clear glaze (must be covered with a dinnerware safe glaze to be considered dinnerware safe).Cone 06 Lead Free Underglazes. Certified AP NonToxic, great for schools. Can be fired up to Cone 10 but some colors will fade. Be sure to test.