The horse thermometer is one of our newest additions to the mix. It is more serene than the other animal thermometers, but it will do the job beautifully. This wooden thermometer is painted on both sides and can be used indoors and outdoors. Suction cups adhere to windows or non-porous surfaces. They are weather resistant and the thermometers are mercury-free and very accurate. Dimensions are 5"x1"x10"