Sit-up exercise device

Description

FIG. 1 is a top plan view of a sit-up exercise device showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof, the side opposite being substantially a mirror image.