We have several greyhounds and foster newly retired racers as well. Among the many physiological uniquenesses of greyhounds is their thin skin. This combined with the nature of our backyard leads to the occasional laceration. In order to keep these wounds clean in the healing process we have a selection of boots, some waterproof and some not. My wife made the comment it would be great it we could dry out the non-waterproof ones with the boot dryer/warmer my in-laws gave me for Christmas. So I decided to build adapters that would let me accomplish this.