Greetings All, I have two gently used Seahawk Slipstream stainless steel folding two blade props. They have seen some use, although I cannot tell you how much as they came on a cat we purchased in LaPaz as spares. I have never installed or used them but they appear in excellent condition. Pictures should tell you all the pertinent details but they are 15x13x1 RH rotation. How about $400 apiece or $750 if you can use both.