<https://propellerfinder.com/product/amita-1311-121-09-aluminum-boat-propeller/#product>
<http://schema.org/description>
"Diameter:&amp;nbsp;12-1/10  Pitch:&amp;nbsp;9 \n    Blades:&amp;nbsp;3  Rotation:&amp;nbsp;Standard-clockwise  Prop Brand:&amp;nbsp;Amita  Material:&amp;nbsp;Aluminum"
<https://propellerfinder.com/product/amita-1311-121-09-aluminum-boat-propeller/>