Proflow Brass Olive Insert For Concave Seat -03AN / 5Pk

Brass olive inserts are tube adaptors which should fit snugly with very little tolerance. You'll have no leaks and no worries when you shorten your brake lines and use these inserts correctly. They make changing that brake line easier and are a must-have if you are working with hydraulic brake lines. Suits female inverted flare fittings.