Review on Premium Blue PVC Dog Agility Tunnel Bag - Non-Constricting Design for Cool Runners Tunnel Hugging by Todd Look

Was looking for inexpensive agility tunnel sandbags for my dogs. So far I like them very much. .- They are not difficult to fill at all - find the manufacturer's website and follow the instructions. Short version: put a plastic bag in, fill the bag, tie it more difficult to put a plastic bag in the compartment, if you really have big hands). See how well the grips hold up to 25 pounds of sand (recommended max) over time. I didn't think it would hold up, but tucking the bags into the bottom of the tunnel well, the ends of the tunnel were rock solid for multiple passages through each of my small to medium sized dogs - even with the bags stretched out a bit. - The harness doesn't compress the tunnel, nothing to enter or snag - I don't see any safety issues. So far I've only used mine on grass - they also can't stay in place on other surfaces - like artificial grass (which is inherently slippery). If you have big dogs that hit the tunnel entrance like a ton of bricks, you probably need something heavier. But for small to medium sized dogs or "more sensible" sized dogs, this is a good deal.