This Mason jar liquor pourer is a necessity for today's moonshine distillers. Mason jars are the preferred container for moonshine and this pourer is designed to fit regular mouth 70 mm Mason jars. This free-flow pourer is permanently affixed to the screw-on Mason jar cap. Simply remove the original Mason jar lid and screw on the pourer lid. This lid is designed to fit regular mouth Mason jars only and is not compatible with wide mouth jars. Materials: polystyrene spout, cork / base (under cap): EVA-Ethylene Vinyl Acetate. The EVA cork/base is BPA Free. Plastisol Liner.