To travel as a Letter items must be less than 5x165x240mm and below 100gm. The cost quoted is that listed by Royal Mail from 23 March 2020.
There are not many items from our shop that are able travel at the Letter Rate. It is intended for an ordinary envelope of size up to C5 (for A5) and containing just a few folded sheets of everyday office ~ 80gsm ~ paper. Anything other than such correspondence is likely to be a Large Letter or Small Packet.
We are unable to send our small ~ and thin ~ items (such as precious paper or needles) without adequate protection (card stiffener or small box).