Application: Shallow & DurabilityRecommended only for 36-volt Digital lower units, the Metal Machete is made out of cast aluminum and provides incredible thrust and long lasting durability. Used by top professionals, this is MotorGuide's most durable prop. (Includes propeller, prop pin and prop nut.)WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to >P65Warnings.ca.gov.