Getting ready for teething. I love that you can put these teethers in the fridge. Since the cold relieves pain and itching, the baby will feel better. The set comes in 2 different sizes, which is great. One is smaller, the other is larger. The quality of the silicone is good, not hard. Doesn't smell.
There is a liquid inside. Even so, it has a solid elasticity, so there seems to be no fear of tearing. There are two types, but the thickness is different for each. I've been giving it since about 4 months, but it seems that I'm enjoying swinging around and shaving. Since it is a ring, I connect it to a stroller or a child seat with a string so that it will not drop.