Features: -Two in one design — converts from open cup to straw cup to grow with your child -Lightly weighted base provides stability from tipping -A snug fit holds the lid in place for splash-free sipping -Soft 100% food-grade silicone is gentle on gums and easy for little hands to grip -4oz capacity perfect for water or milk -Free of BPA, BPS and PVC -Easy to clean, top rack dishwasher safe -6+ months About the brand Munchkin offers innovative, modern and reliable products for babies and children that bring a little simplicity parents' lives. They design effective and safe products of all kinds to enjoy moments with baby during meal time, bath time or sleep time.