The ornamental design for tubular packaging, as shown and described.
FIG. 1 is a perspective view of the tubular packaging showing articles positioned within the package.
FIG. 2 is a perspective view of the tubular packaging of FIG. 1 without the articles positioned in the packaging.
FIG. 3 is a front view of the tubular packaging of FIG. 2.
FIG. 4 is a back view of the tubular packaging of FIG. 2.
FIG. 5 is a bottom view of the tubular packaging of FIG. 2.
FIG. 6 is a top view of the tubular packaging of FIG. 2.
FIG. 7 is a left side view of the tubular packaging of FIG. 2; and,
FIG. 8 is a right side view of the tubular packaging of FIG. 2.
The broken line showing of articles positioned in the tubular packaging is included for the purpose of illustrating environmental structure and forms no part of the claimed design.