Spinner aluminum, 10 1/16" dia by 9.5" length, 3 blade prop. I don't know what type of prop it was used on. Weight is 1 lb 12.4 oz. Has two small dents near tip which can be smoothed out with a little work. The center hole on the back plate is 2" in diameter with 6 prop bolt holes that are 2" on center bolt to bolt. Across the center distance from bolt to bolt is 4". Harry at Tampa Bay $100 including shipping to US. I can send pics. Try 813 then 610 then 8226.