I had big problems attaching the chain to the Avent dummy, with a lot of maneuvering we did it... I dread the day this dummy will need replacing. But I should fear not, the chain seems to last much less than the dummy itself because although they say the colors are saliva-safe well, they're just not. The colors would fade on one another because my little one bites on the beads and already after just 10 days of use it seems overused... Too cute I admit but not functional at all... too bad since I got two of them... bummer