The shaker was as far as I can remember odorless (unlike other Shaker the stink of plastic).
On one side are Ml information and on the other a short Hinweiß bzwl. use.
The ML value is stamped, the usage message, however, is not and who went with me on after 5-6 days.
But also is not so important.
If you use carbonated water recommended this before rauszuquirlen (eg with NEM spoon), so that does not build as much pressure during Shaken.
The first few days I have done so, but a bit annoying. Since I no longer whisk the water and the closure is still tight until today.
To clean the Shaker is easy. 1-2 times ausshaken with water, dry, finished.
Werd buy the shaker next time definitely come back.