These make awesome movable anchors and tie out point for tarp shelter lines
dozens of uses
at only 1.4 grams these are a great option over high priced metal tie outs that claim to be "lightweight"
Will work with up to 3-4 mm cord. Works great with most cord used for lightweight tie outs , 1mm to 2mm diameter cord
Looking for something stronger , check out these in Titanium
https://www.ebay.com/itm/284275821073?
Also in blue and Orange here ...https://www.ebay.com/itm/285406229615