The ornamental design for a T-shape backdrop stand kit, as shown and described.
FIG. 1 is a front perspective view of a T-shape backdrop stand kit showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a front perspective view thereof, shown in condition of use with a backdrop disclosed in broken lines to illustrate an environment.
The broken lines depict portions of the T-shape backdrop stand kit that form no part of the claimed design. The broken lines showing a backdrop in FIG. 8 represent environmental structure and form no part of the claimed design.