For decorating and writing on glass or windows,and virtually all non-porous surfaces. To active-shake well with cap on and upright remove cap and press tip to surface several times until tip fills with ink,do not over pump,recap tightly after use an... - Update: 2012-05-21

Shake well-press the tip on error and gently squeeze barrel to adjust flow of fluid. Warning:flammable(contains cyclohexane) Intentional misuse by deliberately concentrating and inhaling the contents can be harmful. Keep out of reach of children. ... - Update: 2012-05-21