The Patented Jack-Mat Hearth Cushion is a terrific way to protect the dangerous edges of the fire place hearth from children while adding very comfortable seating and matching any decor at the same time. This customer had an irregular shaped hearth to cover. They also wanted the last name to be embroidered. The cushions are built to be removeable. The Jack-Mat is supported by a wood frame, then upholstered with fire retardant foam, batting, and fabric.