It is the only baby bath tub you will ever need to grow with your baby through three stages. The sling locks into two ergonomic positions: higher for full-body support and lower for seated support. Quick-drying mesh and comfort-edge construction securely cradles baby from head-to-toe. The slings adjusts to a cushioned seat that comfortably supports babies learning to sit. When baby has mastered sitting, take the sling off and bathe him in the spacious tub - no uncomfortable plastic bumps.