The OXO Tot Splash & Store Bathtub was designed to grow with little ones from birth to 18 months. The carefully engineered design has a narrow end for cradling newborns and smaller infants, eliminating the need for a separate infant insert. The wider end is perfect for babies who can sit up on their own, giving them plenty of space to splash. The built-in support post keeps babies in place, no matter their age or stage. The quick-release, dual-sided drain is easy for grown-ups to access, even with baby in the Tub. All clean? The tub collapses flat for compact storage; the swiveling hook hangs the Tub for quick drying.