Dr. Brown's Soft Spout Training Cup is an ideal option for use when itÆs time for babies to transition from bottle to cup. The Sip-Activated valve of this attractive cup gets activated only when baby sucks on it to help prevent accidental liquid spillage. The cupÆs spout acts as a teether and gives relief to teething babiesÆ sore gums. The parts can be assembled and cleaned easily.