Whoa that s some mega piping! Or at least it looks like it in the picture
I guess I don't really look at piping very often...but is it usually readily available that big?
it just looks bigger in the picture and when u wrap the fabric around the piping, it makes it stronger as well as thicker. i belive the piping is 11/32 or some where along those lines it lists the sizes on the box of piping when u buy it. get prob the medium size and u should be good. if your unsure just go for a smaller size piping and that would be your best bet for them to turn out more of what u want. hope this helps