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Naturalist equipment
The 30 cm ornithological ruler is a measuring instrument designed specifically for ornithologists working in the field. Made of stainless steel, it stands out for its lightness, robustness and resistance to corrosion. It is equipped with a foot at one of its ends, allowing for easy and precise measurements of the wingspan of birds.
A 15cm version exists here.
This product is made by Ecotone. You can find the rest of their products on their website.
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