This glue stick formula has a smooth application and is great for kids! The disappearing formula goes on purple so it is easy to see when applying, and dries clear when it is set. The glue stick is safe, nontoxic and acid free.Details:Disappearing purple, dries clear22 g (0.77 oz.) stick size12 glue sticksWashes easily from hands and clothesNontoxicAcid freeFor ages 3 and up