This 'Spike Boat Anchor' is no stranger to pontoon boat owners. To use, it's much like a slide hammer going into the sand/dirt as well as coming out of the sand/dirt. Don't have a boat? don't worry. It can also be used to secure/anchor your items at a campsite on a sandy beach or lake/river. I've seen many lost tents floating across the lake and down rivers on a windy day and caught a few too. This model comes with a storage bag. I added reflective tape to mine for easy-to-find in the dark while boat-in-camping.