Springfield Boat Seat Mount 3100521-L1 | Trac-Lock 2 7/8 Swivel Slide

Material: Aluminum ; Color: Silver Post Fitment: 2 7/8" Overall Dimensions: 13" L x 7 1/2" W x 4" H Mounting Pattern: 5" x 5" and 5" x 12" Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate. Hardware and instruction / installation manual not included