Lance T-Square Ruler - Squares - Measuring Tools - Notions
Cross Hair Ruler 5 Point - Sew Steady Westalee Design
EmbroideLee Club Sew Steady Stitch in the Ditch
JollyHatPillow
12 Centering and Half Square Triangles Ruler – Cut Sew Quick
A very useful ruler that allows you to not only measure in a traditional manner, but also from the center out so that you can position your border designs. Some Sew Biz/DM Quilting Templates utilize a thread slot, which is ideal for domestic machines. This design requires the ability to lift the foot, with the needle down, to pass the Template through without breaking thread.
Sew Steady 12.5 Centering & Border Ruler by Sew Biz
Embellish Centering Ruler Rocky Mountain Sewing and Vacuum
Sew Steady Quilting Blog
EK tools Pro Centering Craft Ruler, 16-Inch