Features: Please check if the waterproof ring exists and is firm each time after washing the bulk water bottles for kids in the dishwasher. This small but crucial step helps prevent potential water leakages. Our water bottles for kids for school are not just about holding water, they are about promoting healthy hydration habits. Enjoy continuous hydration with our 20 ounce sports water bottles. Specifications: Material: HDPE Color: red, black and white Size: about 8.27 x 2.76 x 2.76 inches/ 21 x 7 x 7 cm Capacity: about 20 oz Package includes: 6 x Sports water bottles Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.