Your little girl will love sipping her drink with the Hello Kitty Click Lock 9oz Insulated Straw Cup by Munchkin - 2pk. Munchkin"s new line of Click Lock Cups are just right because they just CLICK. These cups feature a simple click-and-lock lid to securely close for a leak proof seal ? guaranteed. Parents will see, hear and feel the cup lock, so they have triple assurance against dribbles and drips.