Red liquid lubricant in a squeeze bottle is perfect for all brass instrument tuning slides and woodwind instrument cork joints. This lubricant is especially handy for (French) horn players who do a great deal of slide removal. Application is a breeze with the squeeze bottle. This very popular stuff was formerly branded as "Selmer" slide lubricant. Now it's in a bottle that won't crack and leak all over the place (IYKYK). 1.6 ounces (47 ml). -cdp