This standing bag is ok...even when filled all the way with water it gets moved all around my room. I could fill it up with sand or a sand and water mixture, but it's in the basement and will be messy...also, I can't imagine how hard it would be to get out if I needed to move the bag.The bag actually comes in two big boxes. One is the base, and the other is the bag. You fill the base up with water and you can just twist the bag to screw it into the base. If you look at it, it's actually just really thick foam that has a cover around it.I've used the bag for a while now. It can actually be kind of annoying and it leaks water out from taking impact. It is much better than the other Wavemaster Bags though. I've knocked over and cracked some of the other ones before from roundhouse kicks, but if you could, I'd recommend getting a hanging Muay Thai bag instead. One that is at least 100lbs, but if it's heavier, IMO, I think it would be better because it wouldn't sway as much. Anyways, with this bag, I've knocked it over once with a front kick, and can tip it a good amount with a high roundhouse.Bottom line, if you have no option for a hanging bag, go for this....but keep in mind that if it's filled with water, it'll go around the room like crazy so you'll have to hit it back to a different area, or push it around by the base. Also, jabs and certain punches don't feel so good on it because you lose a lot of resistance due to it having too much give.
Rating: [3 of 5 Stars!]