Supplied in the original round shape. As fitted to a wide range of vehicles / Classic Cars such as: Daimler Sovereign Hearse Limousine Jaguar XJ6 XJ12 XJS (1976-86) Lotus Esprit Mk2, S3 (1976-78) MGB MGB GT (1976-80) Triumph Spitfire 1500 (1973-80) Triumph TR4, TR4A (1965-76) And makes an ideal general purpose relay for switching high current accessories like spot / fog lights, horns etc, also very useful for trikes, specials and the kit car enthusiast / builder.