When you use heavy 400 pound mono instead of traditional line you don't have to wrap anchor lines around keels anymore because the line doesn't tangle. Without the need to wrap lines you can put out, move, and pick up decoys in a fraction of the time it used to take. And, you don't have to handle wet line on a cold day, which matters a great to people like me who suffer from painfully cold fingers. You just hook one finger through the mono loop and pick up each decoy, then clip a caribineer through the loop. You don't even have to use a bag if you don't want to, although these decoys bag up just fine for boat and ATV transport.