the extra sized flaps are so,
depending on the material you choose, you can:
glue it
staple it,
cut interlocking slits so you can unfold it and bring it with you
This is the simplest
www.ehow.com/video_12223112_paper-interlocking-craft-techniques.html
3 different angled positions
the extra sized flaps are so,
depending on the material you choose, you can:
glue it
staple it,
cut interlocking slits so you can unfold it and bring it with you
This is the simplest
www.ehow.com/video_12223112_paper-interlocking-craft-techniques.html