The mark consists of The image is a black and white stylized oval. Black is in the background on the top of the oval, along the right side and curling clockwise toward the bottom. The silhouetted white image within the black space in the top two-thirds is that of a dog facing right (to the viewer's eye) with one ear standing up. The black curling under the dog's chin is in the silhouetted black shape of a cat facing left (to the viewer's eye) with one ear standing up. The whole image is an optical illusion. There is white space immediately surrounding the oval, bracketed on each side by curved black lines akin to parentheses.