Tip save your money!
All I do it take a piece of wood longer than your auger hole.
Drill a hole in the middle of it and run the shanty’s tow rope thru it and loop around.
Put the back of the shanty to the wind drill a hole in the ice and put the block of wood down the hole.
This will anchor your shanty, it will also aid in pulling the sled.
The only prob with this is you do have to get your hand wet but a small price to pay.