Tub grows with baby through three stages: Stage 1: Newborn (0-3 months; up to 15 lbs); Stage 2: Infant (3-6 months; up to 20 lbs); Stage 3: Sitters (6+ months; up to 25 lbs)
The infant sling is very easy to snap in for smaller babies, or just unclip it and use the base of the tub for bigger babies or small toddlers.
Includes a hook - easy to hang it up on the shower bar or back of the door etc. when not in use