I do not know how long this will last small tub but for now it is perfect given its low price my little 3 year old daughter is comfortable in and it is safe, perfect item to put in a walk-in shower however be careful that the child does not rely too much on the edge disaster because otherwise all the water escapes provide a small pump to inflate because I was unable to do in his mouth .. too difficult ... a small balloon pump does the job it should be reported on the data sheet