When older tots are ready to graduate to the larger sipper, the6 oz. Tot Transitions Straw Cup, Opal and Duskis a great option. It features an almond-shaped straw that conforms to babys mouth for less mess. The unique straw valve opens as soon as a tots lips touch for easy drinking. Plus, the hinged cap closes to create a leakproof seal and protect the spout when not in use. The cap and straw are removable for easy, thorough cleaning. Pack of two.