Pictures attached as mentioned:~
Not the easiest things to photograph but should give you the idea.
The seals are a sort of extended "D" shape (hollow profile-closed cell) from memory a self adhesive one using VHB tape already applied.
You can add the tape separately if you wish.
The under bonnet profile once in the closed position sits on top of the wing rubber-forming the seal.
I cant remember the company that supplied the extrusions but it was probably one of the two listed (link etc) as I generally use both etc.
Hope it helps if you want to seal against water entering the engine bay.
Regards Bob.
Suppliers Link:
https://www.sealsdirect.co.uk/shoppi...DepartmentId=1
https://coh-baines.co.uk/