Royal Mail 24 and Royal Mail 48.
We offer the above postal services on all our UK listings. They are business post 1st and 2nd class, they are not delivery services that guarantee delivery in 24 and 48 hours.
If you require a guaranteed delivery you need to choose guaranteed next day delivery at checkout.
Please note we can only guarantee next day delivery for items ordered before 10:00 due to our postal collection time.