Use this bath seat during bath time for your 6-month-old and older babies who can sit unassisted. The seat has a bar and shaped back for support, an extra-long heat-sensitive bath mat, and suction cups to attach to the bath. The mat size is 15.75' x 35.83'. It's made of 70% PVC foam, 20% PP, and 10% PVC. Wipe the mat clean for care.