Prop & Nut Kits "A" (MKP-9) Easy-to-use kit that allows for fast removal/replacement of prop. Available in three different sizes to fit Minn KotaA(R) prop dimensions (3/8", 1/2" and 5/16"). Includes prop nut and washer. Requires a crescent wrench for installation. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Brochure (pdf)