Use the Sofa Scram to preserve your furniture from damage from dogs and cats. Battery-operated mat emits a loud, but safe, tone that sends your pet scurrying away when he lands on it. Sofa Scram can also be used effectively in doorways, by garbage cans, on beds - or wherever you need to discourage his "visits." Uses one 9-volt battery, not included. Black nylon Sofa Scram measures 12" wide x 55-1/2" long