Things happen, and cards don't always arrive on time. We as a society just need to accept that, and here's the perfect card to say just that. Let's Just Pretend This Was On Time Card by Central 23. 

145mmx145mm when folded and comes with a 150mmx150mm colourful envelope in a sealed poly bag. 

Printed on 300gsm FSC paper and blank inside so the customer can write their own message.