スクエア定規バリューパック

The diagonal angle lines made squaring up my half-square triangles so much faster. This set gives me exactly the sizes I need for trimming without constant ruler swaps.

Finally, a square ruler where the diagonal angle lines are actually printed clearly enough to see without squinting. The seam allowance buffer saved me from having to re-cut my last block.

The extra half-inch built into each ruler means I don't have to do the math when trimming seam allowances—it just lines up perfectly every time. I've used these for squaring up blocks mid-project and the diagonal lines make cutting half-square triangles a lot less fiddly.