Safety duck to the rescue! Place the temperature duck in your baby's bath water to test the temperature. Indicator glows when water exceeds 98.6° F (37° C). The Infantino Bath Duck Tub Tester takes away the guesswork and alerts parents when the water it too hot, making bath time so much safer and easier for babies and parents. At Infantino, we believe every baby deserves access to quality products, this is why we design our products to be unisex so all little ones can enjoy them!