Let's see if I can do this right. Some of the pictures are a little fuzzy but you can get the idea.
1. Cut backing fabric 1" larger than batting and quilt front. Press in half to meet quilt front.
2. place miter tool so lines meet edges of quilt front. Draw line across the edge. Fold right sides together, pin as needed.
3.Stitch from edge to point, locking stitches at beginning.
4. Trim. Finger press fold open, turn right side out. Point turner helps here. Steam seam and corner flat.
5. Stitch, pivoting with needle in the seam you just created. Voila! Perfect mitered corner.
folded to meet front. Place miter tool
Trim excess 1/4" from stitching