This Nuby Grip n' Sip is perfect for your little one. Babies will find the transition from bottle to cup an easy one with the cup's soft silicone spout and the unique contour shape that easily fits their small hands. The soft silicone spout is uniquely designed to prevent drips and spills while being delicate and gentle to baby's gums. Always read the label. Warning: Allowing your child to use this product for prolonged periods separate from regular mealtimes or to go to sleep while drinking liquids, other than water, from this sippy cup may cause or contribute to early childhood tooth decay. For safety and hygiene reasons it is recommended that the spout is replaced every 2 months. Always use this product with adult supervision.