Commercial Mower Seat Safety switch, Slide track seat adjustment, Seat with mount, Movable arm rests, 9 1/2" W x 11" L bolt pattern, Height: 17 1/2 ", Gray to reduce heat from the sun, Used by Gravely, Woods, Exmark and others, Depth: 20 ", Universal seat to fit commercial mowers and ZTR's, Width: 18 3/4 ". Replaces Part Numbers: Stens Part Number: 420-004