The full set contains the following parts:
4 rims 3D printed, 13" ~15,5mm, 15" ~17,5mm diameter
4 wheel spacer adapters
4 Tires (it is possible to order the set with or without tires)
13": #1 Slick
#2 Tread
#3 Stretch Wall
15": #1 Stretch Wall
#2 Tread
#3 Dunlop Semi Slick