With a flat ruler you always balance on the seam when trying to align it. These rulers have a channel to hold the seam so you don't slip while cutting. In this set you will find the most common sizes of half square triangles. This is my second ruler set from Bloc-loc. I also have a few of these that you use to trim semi-rectangular blocks.
Triangle Group TR259 225/65 R17 106V summer
55 Review
4-Pack Omnigrid Square Quilting Ruler Set: 2.5β, 4.5β, 6.5β And 9.5", Value Pack
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Craft Tool Quickstik by We R Memory Keepers
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π 100 Pack of Assorted Colorful Adhesive Stick-On Heart, Star, and Round Shaped Jewel Gems for Arts & Crafts, Themed Party Decorations, Children's Activities - Super Z Outlet
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