Door card off job John ?
No, just like @JasonW 's post : Easy to fit... unscrew the originals and screw on the new ones...
To remove, they were tight all the way up, so used a small pair of grips with a cloth wrapped around for protection.
Righty tighty, lefty loosey
The discussion re which way round the logo stopped at, took longer than fitting them!!
I am still not sure they should face inwards, but Mrs moomin-j is happy and that is what counts (she says)...