Chipboard O-Card flats for audio cassettes. Includes 50 pieces shipped by Lettermail worldwide. Choose your destination in the options. Make your own audio cassette O-Cards! The board is uncoated so you can use a variety of printing methods - stamps, silkscreen, inkjet. Prescored for easy folding and gluing. Made with 18 point brown chipboard. Canada Post estimates delivery within 10 days worldwide. Note there is no tracking number with this item.