Euromax Saddle Design Water Weight Bag for Studio Photo Sports 4-Pc(Black)

I love these, and as far as i can find, these are only water filled designed saddle bag weighed system on the market. They are thick, dont leak and have have tons of usage applications.. Easy to pack and travel with Vs sand. They lay flat and weight little empty. I have several out in the elements that have ast years without leaking or degrading. I use them for weighting down signs, tarps, construction materials, tripods, and one of my favorite tricks is for pack training. If i get too tired, ot hit my goal, easy to fump the water. Large mouth for easy filling and tight threaded closure for secure leak proof use.