I am very happy, I have a little boy in 4 months now and he likes to drink slowly and tried all the brands to try to find him a nipple for milk thickened with cereals and anything that was going too fast he screamed I tried dodie mam, Advent Tigex ... And the miracle, I tested, saying that it was the last that I would buy my son, and accept without problem the speed is niquel, I recommend for babies who do not like drinking too fast!