Oddballs Sand Filled Footbags - 32 panel

The 32 panel foobags are excellent, they take a short while to break-in and once done are then very controllable. The stitching has so far proved robust and has survived a lot of use without breaking. The only issue I have, though not confined just to these bags, is the loss of sand over time, requiring regular top-ups. I have largely resolved the problem by replacing the fine sand with a coarser, fine, washed, aquarium gravel, which isn't as prone to leaking out. It would be great if Oddballs could move to a similar slightly coarser filling.