Keeps chisel in placeQuality, cost-effective replacement partExtends the working life of your toolSpare conserving spring to maintain chisel in place. For use with Air Hammer Set.colour:BlackMaterial:ironSize: internal diameter 29mmPackage Contents:1 X Air Hammer Retaining SpringOnly the above package content, other products are usually not included.Note: Light capturing and assorted reveals can cause the colour of the article within the photo a little varied from the real thing. The dimension allowed error is +/- 1-3cm.