Pipes for my little ones, of course, are bigger in diameter, but this is only at first glance :)). Children with pleasure from them immediately began to drink drinks. The quality of the silicone is not bad, there is no smell. The brushes are dense, they rinse the inner part of the pipe well. The only advice-wash the pipes only half (on one side half washed, inverted and the other half of the pipe washed), otherwise the brush is very difficult to pull back. On the brush there is a stock of a sharp tip, which will not allow the brush to damage the silicone. Bought for 319 rubles. I did not regret that I ordered from this seller. Thank you.