The ruler is use most is 2 1/2 x 18. 6, 6 1/2, 7, 7 1/4(used for flying geese and 5 1/4 for FG) 8 1/2, 9, 9/12, 10, 12. A lot of the rulers I use for specific patterns especially 6 and 6 1/2 for HST. Some of these sizes, I had cut out at a glass shop from plexiglas. I usually fold my fabric WOF twice to cut so I find the 24 inch rulers difficult to use.