Ok I will post some pics when I get back up there and figure out how to post. Basically it is a ring of foam a little bit bigger than your plastic tote with chicken wire on top I use a layer of thin plywood on top of the foam then the chicken wire this allows me to cut strips of foam and screw it to the plywood so I don't have to waste any foam for the cut out tie a line to it and something to anchor it and you are all set