My about 6 month old baby finds this totally cool teething ring. He has brought its cooling pain relief for more than one time. The cooling effect could indeed last longer, but the time is still okay. Although times expresses no teeth, is played nice with the very handy and relatively light ring and chewed off. The different degrees of hardness and surface structures of the "corner" offering a playful manner. Its shape can be gripped very easily and is thus not only cooled the hit. In retail, it can be had for much less money and therefore was bought there ... Actually, there is therefore a strong buy recommendation, if the price is right.