What size paper do you print passports on?

[mamaprincess]

I'm trying to design passports for my girls thanks to all the neat ideas here but I am wondering what size paper do you print your finished product on? If anyone can help that would be great!

 

[sueh]

I used a regular 8.5 x 11 piece of card stock to make mine.

I would print 1 page at a time and then flip it over to print on the back side.

Good luck!