We got this Greifling the birth of our daughter, which is now about 6 months ago. In the beginning it has not been interested so for only for about 2-3 months, they play with it and of course also sucks with passion around. Especially these two nipples on the side have it done to her. Yesterday we noticed that is quite clearly seen in the blue nipple now the color of the wood beneath. Helps you with your fingernail a little, scrolls forward to a nice color. This must not happen with baby toys! Check on the website of Gollnest & Pebbles ([...]) is the Greifling with the number 734 300 and certainly not to be found. For good reason? I once let the producers get an email. Let's see if will respond. Next time we buy anyway prefer untreated wooden toys. Since our daughter can at least ablutschen no color. By buying this gripping Lings I advise in any case sharply from!