I picked up 3 of these in March. They are made in Iowa . Designed for helping access tough to get at soft bottom spots. They have a nice website if you want to learn more. I bought them for that purpose but i am adding a twist of my own. I built up a pvc framework about a foot tall then got an old field layout blind and cut the bottom out. I mounted it to this pvc frame work and put a board across for a seat still using the original sling seat of the blind as a backrest. I can hide completely inside in a sitting position while utilizing the door system like normal. I added some additional canvas to cover the gaps on the sides. With a better cutting schedule i think the next one i make will be better.