Tanglefoot 30000504 10 oz Bird Repellent Caulk: * Repels nuisance birds without harm * A clear, odorless gel designed for use as a sticky repellent against nuisance birds * Contains no harmful chemicals or poisons * EPA registered for use with pigeons, starlings and sparrows * Use for domestic, commercial, industrial and farming applications * When used as directed, it will not trap, poison or harm birds * Remains effective for approximately six months to one year * 10 oz