Please note the difference in the 4×4 file and the 5×7 & 6×10 sized files. The 4×4 file has fill stitch for the tail wing.

Sizes:
2.08 x 3.87 in (4×4) and 3540 Stitches
3.06 x 6.76 in (5×7) and 6073 Stitches
4.40 x 9.79 in (6×10) and 9061 Stitches