I know there have been better deals but this has been the best one in about a month and i think the others may have expired.
Also this is my first post so be nice :)
I know it's cheap as they retail in some shops for around £1.10 or more.
They had orange and blue where i was but there was a ticket saying the red was that price too.
If you can't find any, mine were on the bottom shelf of the confectionary/ battery stand at the tills.