Tube Cap

FIG. 1 is a front, right perspective view of a tube cap;

FIG. 2 is a rear, left perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown on the drawings depict portions of the tube cap that form no part of the claimed design.