This Allows Aircraft Propellers to be Adapted to Motors with a PlainOutput Shaft. Motors Normally Intended for Car Use Are Included in ThisCategory. This Prop Adaptor Will Work with Standard 05, 10 and 15 size Motorsor Any Motor with a 1/8" Diameter Output Shaft.FEATURES: Black Anodized Aluminum Drive Washer with 3/32" diameter prop shaft. Aluminum Prop Washer held on with 6-32x3/8" allen screwINCLUDES: One Prop AdaptorSPECS: Hole in drive washer for motor shaft: 1/8" diameter Drive washer: Diameter: 3/4" Thickness: 3/8" 9/27/94 RDT ir/jl