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Bloc_Loc® Rulers work with any method for marking half-square triangles (HST)
S
o whether you prefer using paper or sewing triangles together, Bloc_Loc® is there to help you square up each and every time.
No more ruler rock or slipping and no
need to put heavy hand pressure on the ruler either
because of Bloc_Loc's® patented channel technology that locks onto your seam allowance which make squaring up easier and safer!
Simply align the channel over the seam and trim. It's that easy!



Watch the Demonstration Video