The easiest half-square triangle squaring up set I have ever used. Lock your block seam in the underside groove of the ruler and your ruler won't twist or wobble, making it easier to square and trim!
Bloc Loc's patented technology of half square triangle rulers make the tough job of squaring up easy and fast. The groove slides along the seam to trim smaller units and allows quilters to rotate the block without lifting the ruler. Set includes: 1.5", 2.5", 3.5", 4.5", 5.5", & 6.5" rulers.
Be sure to watch the video, under the video tab, on how to use these rulers.