We bought these for our little water wings and had been in use. Aufpusten That went very easily, the valve is closed so that air can escape only when squeezing it. So you do not impress frantically to prevent the escape of air the shutter after Aufpusten. Only the very strong plastic smell at the beginning was really uncomfortable. After the first use of this, however, is pursue. Good product that does what it is intended, namely to keep the child safely afloat.
