Diamond stone sharpener. Easy to use and saves a lot of time cutting easily and piling up firewood quickly. Takes a dull chain and makes it as sharp as new and it holds its edge like a new chain!

Used outdoors on patio furniture in az. They are sturdy and keep the shelter anchored during wind. We were looking for a little larger/heavier weight to combat the winds we have locally.

These are perfect. Worked like a champ - ours did not leak. The seller is wonderful to deal with, too.

One drawback is that the bags are solid black. That's why i like the yellow stripes on regular bags. For visibility, temporarily stick some tape on the ends.

Two of the four leak at the fill cap. My assumption is over time the manufacturer has been cutting corners. Maybe another brand is water tight, but i'm going back to sandbags.