The Westalee Design 5 Point CROSSHAIR RULER is for marking 5 (72°) or 10 (36°) or 20 (18°) reference lines. The 12.5" size allows you to mark up to 12" blocks. AND The 8.5" size allows you to mark up to 8" blocks.

The different cross hair rulers don’t come with feet and are not machine specific. These are marking tools and are not to be used for quilting, and unlike the templates they don’t come in different thicknesses.