Crashed Now Left With 2 Rings

[NickVDBrink88]

Hi,

Crashed my mavic air
Ordered new body shell and damaged parts.
Replaced everything but cant put the top body shell on because i got 2 rings but i dont know where they must be.
Can someone help me where i must place these rings.
Pictures Attached.

Thanks

 

[hactick]

A good mechanic always finishes a project with spare parts.

 

[NickVDBrink88]

Thats true but because it flys in the air i dont want to have spare sparts