Square cards are meant to be seen when packaging the bouquet,  so they come with a transparent envelope. Write a message inside, add enclosures if you have any, and seal.  

The card is sized to hold your business card, flower food and care instructions.

Then  either attach to the packaging--you can easily punch a hole in one corner to tie with a ribbon-- or stake the card into the bouquet so as to be partially visible. A fun and contemporary feel is the theme of these cards.

Square cards are sized to accommodate Inner Circle cards and are 10cm square. 

Cards are sold in packs of 10, £2.50 per pack.  Unit price 25p, RRP 50p to £1