I claim the ornamental design for a shoe lace tightening reel, as shown and described.
FIG. 1 is a front view of a shoe lace tightening reel;
FIG. 2 is a right side view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof; and,
FIG. 6 is a perspective thereof.
The broken lines in the figures are for the purpose of illustrating environmental structures and/or portions of the shoe lace tightening reel and form no part of the claimed design.