I created these neck joints to be able to use older 2.0 Goku and Vegito heads with the new 3.0 figure models from S.H.Figuarts, Kong Studios/Beast Deities and the new Demoniacal Fit 3.0 Goku. Description below:

2.0 to DF 3.0 Goku: Allows you to use older 2.0 Goku or Vegito heads with the Demoniacal Fit Martialist Forever Goku body.

2.0 to Gohan/LSSJ Peg: Allows you to use older 2.0 Goku or Vegito heads with the Superhero Gohan body or LSSJ Goku Body.

2.0 to Kong 3.0 Peg: Allows you to use older 2.0 Goku or Vegito heads with the Kong Studio/Beast Deities 3.0 bodies. It also works with the older SSJ4 figures and their SSJ5 figures.