When printing , i recommend to print it upside-down. 

There are 6 spacers included

Full , half, angled, spacer:

just the ordinary spacers

the angled spacer:

one side is the height of the full spacer and the other side is the height of the half spacer

Basket hoop on spacer

1	2	3

recommend with the trampoline

Spacer 1:

The end hoop

Spacer 2:

A hoop with a hole

Spacer 3:

Kind of like a catcher on it