Cardboard backed C5 Envelopes - Help

[JamesLarden]

I'm in the UK, and i want to send a C5 cardboard backed envelope to a celeb as a SASE. The thing is, do i only need a normal 1st class stamp to put on it, or do i need more?

Thanks,

James {thumb2}

[Phoebe]

If the envelope is no more than 1/2cm think and under 100g then that is fine. Any more then you would need a large stamp. That is fine for UK domestic mail.

Happy collecting! {thumb2}

Phoebe

[Paigey012]

As Phoebe said, it depends on the width & weight of your letter

[JamesLarden]

Thanks for your help! It will probably have a picture or a cd booklet in it.

James {thumb2}