The blue ring is made of rubber and therefore both easy to grip and bebeißbar. The three green - I'll call - the teething ring fingers each have a different surface, may be so varied here. The two different sides are repeatedly "investigated" anew. Most often, however, the mean green part sinks into baby's mouth)
Now we already use the teether more than 2 months and no quality defects are detected - despite already numerous rinses in the dishwasher and washes by hand. And my son also seems to be very satisfied. As soon as the first teeth come through the Brißring are then tested definitively through its paces - but I have no doubt that this will at least turn out good quality.