These bottles are made to engage baby both visually and tactilely, designed in eye-catching colors and shaped to more closely mimic breastfeeding with an off-set nipple and a soft texture and form that makes gripping it easy for both baby and parent. Integrated dual-venting limits air ingestion, helping to prevent colic. Set of three baby bottles with slow-flow nipples Ages 0-3 months 3" diameter; 5" height 4-oz. capacity each BPA-, PVC- and phthalate-free Nontoxic, medical-grade silicone Dishwasher safe Imported Kids' Wear