seat belt adjusters

[ktj]

Didn't know where to post this hope it's in the correct place.:confused:

Does anyone have those little plastic adjusters that you fit to seat belts to stop them rubbing your neck??:confused:
Are they any good and more importantly are they safe or in a crash would they break and allow the seat belt to have to much "give" before they lock.:eek:
:money: I know that they are quite cheap, but obviously I don't want to waste money buying them if they are rubbish.

Thanks in advance for any help that you can give.:T

[Conor]

They just bend. They don't allow sufficient give to make much of a difference.