Prefect Hoilday Gift ! Now Baby can enjoy swimming in the comfort and safety of your own bathroom !! Ring Outer Diameter 14.6". Inner Diameter 3.1", Height 3.1" fully inflated Swimava Pool: Inner Diameter 29.5 inch. Outer Diameter 35.4" X Height: 25.6 Capacity 230L / 50 gallons. On average, how many hours does your baby sleep each night? Record your baby's sleep patterns and durations before and after Swimava and compare the difference after one week of regular Swimava bath time each night. Set aside 15-30 minutes of Swimava bath time within 1 hour of bedtime and notice your baby's improved sleep quality and duration. We guarantee you will see encouraging results. Swimava Baby Swim & Baby Bath Products are chosen with your baby's health & safety in mind. Our focus is on early baby fitness and development through baby swimming and better use of regular bath times at home. Your baby's health and baby swim safety is our highest priority as we're sure it's yours also. Swimava offers security and free mobility for your baby swimming from as young as one month old. The key to early water safety and the transition to actual swimming is first learning to tread water. Our Swimava Swim Ring gently supports your baby's head above water allowing him to learn 'treading' movements early, and with the intent of avoiding drowning accidents later on. BENEFIT: Baby swimming is one of the best early activities you can offer your baby. It stimulates physical and mental development from an early age, improving core muscle development and co-ordination.