https://www.etscablecomponents.com/product/flexistrap-trefoil-cable-strap-30-41mm-od-fs30-41sdl/
Flexistrap Trefoil Cable Strap (30-41mm OD) - ETS Cable Components
Stainless steel Ellis Patents standard-duty Flexistrap trefoil retention strap for cables between 30-41mm diameter.
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