All my rulers are Creative Grids with the exception of some of the speciality ones. I use my 6.5x 24", 3.5x 24", 4.5"x18" the most. I like using my 8.5" to make strip tube quilts, thanks to the board, didn't need the fancy triangle ruler to make those. But I do have a lot of rulers that are still in plastic, but they will get used, if not, the board is a great place to treasure hunt.