<https://red-bhw.com/product/interchangeable-57mm-optional-screw-in-eye-for-euro-tow-pole-44/#product>
<http://schema.org/description>
"57mm interchangeable screw in eye for 44 tonne Euro tow pole (part 11940 or 11908), supplied as an additional option. Compatible with draw bar couplings, makes attachment with draw bar trailer couplings and towing vehicles with a front tow jaw attachment very easy and quick to engage. Supplied in a red oxide primer finish."
<https://red-bhw.com/product/interchangeable-57mm-optional-screw-in-eye-for-euro-tow-pole-44/>