Sick of drawing diagonal lines on fabric in patterns?  Then you will love this Diagonal Seam Tape™ from Alison at Cluck Cluck Sew.
This nifty washi tape acts as a guide for sewing diagonal seams without marking lines .The black lines on each side of the red seam line replicate a perfect 1/4" seam, so getting a perfect 1/4", lining up fabric, or even making half square triangles is easy.
Each roll contains 9.1m (that's 10 yards) of tape so will last you through many projects
Diagonal Seam Tape is strong, adheres well to every surface, but removes cleanly. Its also easy to lift and replace if you need access to the bobbin or remove your machine's extension table..  To prevent residue on your machine, remember to  remove and replace the tape after each project and don't leave it on your machine for long periods of time.