Tube

FIG. 1 is a right side view of a tube showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a perspective view thereof.

The dash-dash broken lines depict portions of the tube that form no part of the claimed design. The dash-dot-dash broken lines illustrate a boundary of the design that form no part of the claimed design.