Metalastik Rotoflex rubber drive couplings (also known as donuts) are high quality replacement for the drive couplings used on some classic cars and race cars such as Formula Fords. Most fitments are available in a heavy duty version which have additional metal interleaf plates for increased durability and higher torque rating making them ideal for Motorsport use.Original Rotoflex brand not cheap copiesHeavy duty versions available for increased durability and higher torque capacityAvailable for popular OEM fitments including Lotus Elan, Hillman Imp, Triumph GT6 and also race cars using Hewland transaxlesNote: Rotoflex drive couplings are supplied with a steel retaining band fitted. This band should be removed once the coupling is installed.Sold individually.