The base is 1" in diameter which will fit all the vintage Star Wars
range comfortably. The 1" diameter are more suited to the smaller
figures like Yoda/Jawa etc.

These stands fit the following figure lines - 

Kenner Star Wars vintage (1977-1985)

Kenner Teenage Mutant Ninja Turtles Vintage (1988-1997)

Kenner The Real Ghostbusters (1986-1991)

Hasbro WWF vintage (1990-1994)

Super7 ReAction