Knock-proof. Bump-proof. Ooops-proof. The open top cup that won't knock over. Features: -Toddler-proof open cup that won't knock over - especially designed for kids -Resists accidental knocks to prevent mealtime spills and endless clean ups -Special base powered by CleverGrip technology grips to any smooth surface but lifts up easily -Encourages open-cup drinking without the mess -Dentists recommend open cups to support healthy oral and speech development -Ideal for mess free mealtimes -Available in 2 sizes 190ml and 300ml -BPA Free