These are a high quality ball joint.
 
These ball joints are oh very high quality, used by Ginetta themselves as their OEM balljoint of choice.
 
As with the Delphi ball joints these have the correct taper which matches the OEM Hub carriers on the VX220 and various Lotus cars.
 
Will Fit : VX220, S1 & S2 Exige , S1 & S2 Elise
SKU : BAL002
Manufacturer : FirstLine