I will caution you that in the Missouri Star Tute, she says 4¼" when in fact it is 4½". this is a great way to take 2½" strips and make something that works great for quilts for Project Linus. I also like the fact that you don't need a special ruler. I did buy it but it confused me more and went back to using a standard ruler. We all have fugly fabric and this pattern makes it usable.