One Set of Prop Rulers includes:

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• 2 laser-cut 1 engraved acrylic propeller-shaped rulers.

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Replace those old and bent cardboard firing rulers with new laser-cut and engraved acrylic ones! They have a short/long range line at the halfway point and you can turn them on their edge for more precision when measuring. Sold as a set of two.

(Aerodrome Official accessory).