works great! it eats the stump

Its good stuff. A lot of stump removers have reformulated to sodium metabisulfite which decomposes dtjmps slower via a different reaction. This is good ol potassium nitrate. Which provids a couple different options to get rid of the stump

It said they had 7 but when I got to the store they had none and told me they must have been packed away

This worked great on an invasive shrub, which previous homeowners allowed to grow uncontrollably. After cutting the shrub to a low stump, it continued to grow shoots - even after multiple herbicide killers. I followed the directions and drilled TWO sets of holes (two verticle holes offset from center and two diagonal holes on opposites sides of the stump). I applied the product, waited five weeks, and the applied kerosene. After another two days, I applied a "healthy" amount of charcoal lighter fluid and allowed it to soak in and mostly dissipate. NOTE - I surrounded the stump with rocks to mitigate any fire from spreading. I lit the stump on fire, the stump burned with a small flame for several minutes (I used lighter fluid as the final fuel, rather than kerosene) and it smoldered for a few days. I was surprised each morning to see how much the stump had "magically" disappeared overnight. The stump soldered right down to the groundline. Interestingly, the roots from the shrub continue to produce shoots, but the lawnmower easily handles the problem. Overall, this is an effective product if you put in the time, effort, and safety meeasures.