The ornamental design for a fingercontrolband for phone case, as shown.
FIG. 1 is a back and top perspective view of the finger control band for phone case showing my new design;
FIG. 2 is a back view thereof;
FIG. 3 is a back view showing the finger control band for phone case shown uninstalled and with the tabs shown bent in a forward position;
FIG. 4 is a side view of FIG. 3, the opposite side being a mirror image thereof;
FIG. 5 is a front view of FIG. 3;
FIG. 6 is top view of FIG. 3;
FIG. 7 is a top and front perspective view of the of the finger control band for phone case shown uninstalled in a second embodiment with tabs shown in a straightened position;
FIG. 8 is a back view of FIG. 7;
FIG. 9 is a side view of FIG. 7, the opposite side being a mirror image thereof; and,
FIG. 10 is a top view of FIG. 7.
The broken lines environment is for illustrative purpose only and forms no part of the claimed design.