Positives:
+ For the price of a cup, here we are 6 (each with their beaks).
+ I was skeptical but it is true that very few fleeing cups (which was not the case with my old, impractical suddenly), even without cover, they can be transported.
+ The colors are attractive.
+ My son adopted following any of them, he is very proud to drink from what appears to be a glass to great.
The downside:
- Plastic is late when the cup appellation.