Quinn is now 18 months old. Since diagnosed with dysphagia, a swallowing abnormality, he has only been able to drink thickened liquids too thick for a sippy cup. For that reason he has remained with a bottle. He is only now just weaning to a sippy cup with thinner liquids though still thick. He refused to use any type of sippy cup that we introduced until his feeding therapist gave us one of your sippy travel cups. Since then he has been able to drink using his cup and loves it. Our only problem is that we need more.