Half-Square Triangle Ruler 12.5″ x 12.5″

Bloc Locs Half-Square Triangle ruler 8 1/2 x 8 1/2 locks onto the seams for instant ruler placement, control so that the seams end in each corner and trims 90% faster than a flat ruler. Ruler rock is gone, too! Also trims quarter-square triangles, birds in the air, y-blocks, LeMoyne Star, double windmill, hidden square units and much, much more. HST ruler is multi-sized and trims in 1/8 increments. | Contains 1 Ruler: 8.5″