Actually recommended for children from 9 months. Our baby was with the normal Schnaeltassen / mugs and start the pacifier cups nothing - suck yes, but no drink. This cup which is fine because is, as soon sucked through the small holes, releasing the liquid from coming and what ind baby's mouth. The cup holds tight when he gets dropped times. As I said liquid comes out only when is drawn to the cup rim.
The only downside: no measurement scale exists, how much liquid was drunk.