This product is a repackaged version of the classic "Amazon's 100% Pure Tung Oil," approximately 40ml in a container. The original product comes in a 400ml bottle, which is far too much for most people to use. Therefore, we've decided to offer it in smaller portions so that more people can try it out easily. Simply apply a small amount to a cloth or paper towel and spread it on the fretboard of your electric or acoustic guitar. 40ml should be enough for at least 5-6 applications. * Use sparingly when applying. Applying too much is not recommended. Refer to the Kiesel Guitars YouTube video for application instructions. * This product is not effective on lacquer or poly-finished surfaces. Use it on satin finishes, oil finishes, and fretboard materials such as rosewood, ebony, and pau ferro. We will ship it in a small 40ml container, as shown in the second photo. (The cap color and container shape may vary) *AMAZONS-TUNGOIL-40