Is this how the rubber ferrules fit?

[sefton1275gt]

Is this what these shimano rubber ferrules fit?

They came with the cable kits I bought

 

[sefton1275gt]

I’m using these jagwire ferrules out back

 

[FluffyChicken]

Designed for the stays mainly

 

[bikeworkshop]

Meant to keep dirt out.
Usually trap it in.