Diagonal Seam Guide Tape by Cluck Cluck Sew simplifies sewing diagonal seams for quilting and sewing projects—no need to mark fabric first! Place this washi tape in front of your sewing machine’s feed dogs, aligning the red stitching line with the needle. The black lines offer a precise 1/4" seam allowance, perfect for guiding fabric, creating HSTs (half-square triangles) without marking, and keeping long strips straight. Ideal for beginners and seasoned quilters alike. Strong yet thin, this tape removes cleanly—peel it off after each project to avoid residue. Each roll is 10 yards, providing ample supply for your next quilt or garment. Upgrade your sewing accuracy with this must-have quilting tool!"