The ornamental design for a reboundtrainingdevice, as shown and described.
FIG. 1 is a top, back, right side perspective view of a rebound training device showing my new design;
FIG. 2 is a front elevational view of the rebound training device shown in FIG. 1;
FIG. 3 is a right side elevational view of the rebound training device shown in FIG. 1;
FIG. 4 is a back elevational view of the rebound training device shown in FIG. 1;
FIG. 5 is a left side elevational view of the rebound training device shown in FIG. 1;
FIG. 6 is a top plan view of the rebound training device shown in FIG. 1;
FIG. 7 is a bottom plan view of the rebound training device shown in FIG. 1; and,
FIG. 8 is a top, back, right side perspective view of the rebound training device shown in FIG. 1 with the hand holds repositioned and a portion of the spring elements removed to illustrate a position of use.