The perfect solution for sewing straight diagonal seams without having to mark any lines!! Simply place tape in front of feed dogs with the red line in front of needle as the stitch line. The black lines on either side of the center line represent you perfect 1/4" seam allowance and make a great reference for making half square triangle or learning the perfect 1/4". The special washi tape is strong, thin and removes cleanly after sewing project. Roll is 10yds

Diagonal Seam Tape