The Digger Ice Angel is a totally unique self-adjusting tool designed to fit any ice fishing hole from 6 to 10 inches. This portable fish house anchor is light weigh but strong enough to hold an ice shack, pop up tent or shanty. Simply drill a partially drilled hole (keeping it dry). Drop the Ice Angel into the hole and create tension on your rope, cord, bungy or line. The ridged wings with grab the sides of the hole tightly and not let go until slack is given. The purpose is to allow any ice shack or structure the security in the wind. The Ice Angel anchor is very easy to use and remove. Far faster and easier than screw in ice tent pegs by far, and more secure - and we guarantee it!