Our A4 all board envelopes are classed as large letter size by Royal Mail and help to keep the postage rate as reasonable as possible. Made from a 350gsm white card they will help to protect your calendars from the damaged that can occur from the postal service.

Our Slimline all board envelopes are classed as small package size by Royal Mail and help to keep the postage rate as reasonable as possible. Made from a 350gsm white card they will help to protect your calendars from the damaged that can occur from the postal service.