Sunset had explained the latter as the ponies' answer to a lack of hands, a universal form of equine magic that enabled them to "stick" things to themselves, or themselves to things. It certainly was useful, and even permitted ponies to do a few things humans couldn't, since it wasn't restricted to hooves or frogs—but it did have sharp limits, being no stronger than musclepower and extending no farther than direct contact or contact through a single intermediary layer such as clothing or shoes. "After Sci-Twi compared it to the way gecko feet work, Rainbow Dash started teasing me about 'gecko hooves'." The young unicorn had rolled her eyes in affectionate exasperation.