MESSY PET CAT 4-in-1 Pet Training Deterrent, 27.05 oz. Revolutionary new formula creates an invisible liquid shield with an ultra-bitter taste and natural pet deterrents Prevents pets from destructive chewing, scratching and urine marking Trains pets to stay off of furniture Use on carpets, upholstery, furniture, auto upholstery, drapes and more Non-Toxic and biodegradable