A set of 3 extension bars with spring loaded universal joints which have been designed to make them easier to fit on to sockets and offer up to fasteners. Ranging from 150mm – 305mm, these 3/8"D extensions are ideal for use on difficult access fasteners such as in engine bays and under dashboards; the springs also help to prevent the joint becoming loose with age and wear, meaning that they will continue to be easy to handle.