I have some propellors for Mercury/Yamaha outboards and some for Mercruiser/bravo sterndrive i/o. To fit Mercury or Yamaha 90-115hp outboards Hubs are 15 spline, 4.25” gear cases, both with fixed rubber hubs in good condition: 3 blade stainless- 13x17P K prop Yamaha painted black $100 obo 5 blade polished stainless 12.75x20P mercury High Five water sports prop (part#48-816612-20) $ 250 To fit sterndrive/inboard-outboard: Stainless 3 blade- 14.5 x 21P painted with mercury with 15 spline rubber hub $150 obo Aluminums 3 blade 14.5 x 19P with 15 spline rubber hub $60 Aluminum 3 blade- 14 x 19P with 15 spline rubber hub, slightly more cupping on the blades than the other aluminum above. $60 These have various cupping options that perform differently. If you are looking to try performance options or spares, i am willing to sell pairs/sets at discount. You can try them all for the cost of one fancy new prop! If you are unsure what prop size you need, here are some search tools. https://www.go2marine.com/propeller-fit-guide https://cdnmedia.endeavorsuite.com/images/organizations/9e2f39f4-4734-42f5-a42c-789409c55c6c/PDFs/May14th/Yamaha_Propeller_Guide.pdf