The ornamental design for a clamp for flexible tubing, as shown and described.
FIG. 1 is an isometric view of a clamp for flexible tubing according to the present invention, taken from near a first end thereof, shown in the clamping state; flexible tubing is shown in dashed lines and is not part of the invention claimed.
FIG. 2 is another isometric view of the clamp for flexible tubing shown in FIG. 1, from near the second end thereof.
FIG. 3 is a side view of the clamp for flexible tubing shown in FIG. 1; the opposite side view is a mirror image thereof.
FIG. 4 is a top view of the clamp for flexible tubing shown in FIG. 1; the bottom view is a mirror image thereof.
FIG. 5 is a first end view of the clamp for flexible tubing shown in FIG. 1; dashed lines represent structural details within the clamp that are not part of the invention claimed; and,
FIG. 6 is a second end view of the clamp for flexible tubing shown in FIG. 1.