We have used these sandbags for years and love them. Was on a recent shoot with other professional photogs and videographers and they loved that we had extra bags (cuz they were able to borrow some) and that they looked so good!! Two Pro Tips for you. 1) Always double bag the sand and 2) Don't use sand!! See if you can find someone who is getting rid of a fish tank and use the dried out tank gravel. (Or buy it new) The rocks don't have sharp edges so they wont cut the bags like sand does. BOOM - YOU'RE WELCOME!!