All 316 Stainless Steel Fleming Major Self Steering Vane. This unit is rugged. I purchased this unit from a friend who had this unit mounted on his 30,000 lb+ 43' Steel Cutter. I used for one year while cruising down in the Carribean. Unit is complete with wheel drum, wooden vane blade, mounting tubes & brackets, bullet blocks. $ 2,500. Located in New Hampshire. Shipping is additional.