Home Furniture & Seating Seating, Tables & Pedestals Seat Hardware Short Mainstay Adjustable Height Package with Swivel – 2-3/8″ (Adjustable Height: 12″ to 15-1/2″) Springfield Marine Short Mainstay Adjustable Height Package with Swivel – 2-3/8″ (Adjustable Height: 12″ to 15-1/2″) $373.59 Short Mainstay Adjustable Height Package with Swivel – 2-3/8" (Adjustable Height: 12" to 15-1/2") quantity Add to cart