Seat back harness pass through slot bezels. Look to be the same style as the ones dragon sells. A template is included, but not recoomended for use.   These can be installed in many different seats. 

Instructions when not using the templet.   Make a cut out with dremel tool drill-like cutting bit. Cut out foam with serrated knife, just slit foam in center area. Cut fabric with razor. For RZR seats like in the pictures, line up the top of the cutout area with the center of the star on the seat back and trace area to be cut out. Auction is for slot/bezels for 2 seats. RZR Seatbelt bypass plug included. For single and 4 seat set check my other auction.

Dimensions of the trim piece are:

Overall Width 9.75 inches

Overall Height 2 1/8 inches

Cutout Width 9.25 inches

Cutout Width 1.5 inches

When snapped together 2.75 inches thick

Corvette, Miata, Jeep, seatbelt, point race, teryx