Doesn't actually exist unless you're a Looney Tune. Theoretically, it's a stretchable black disk that sticks to anything and makes a hole through it to the other side. Somehow you can pick it up and carry it, presumably by grabbing onto the edge. Only works if everyone thinks it does (see Wile E. Coyote). If you find one, please send it to me. Sold by Acme(tm).