BOB XL - Body Opponent Bag

This thing is awesome.

My order from Century Kickboxing arrived within days. The BOB XL is nearly ready for use right out of the box, all he needs is a fill of sand or water to stabilize the base. Adjusting the height is easy. This is a great workout that I actually enjoy. Even after a long day at work I'm not skipping fitness because I actually want to punch and kick this thing MORE after a stressful day! All 5 stars, I highly recommend!

Great purchase

It was exactly what we expected and we love that the height can be adjusted.

Unstable

I like the BOB XL but when I use combination punches it knocks the whole thing off balance. The base is slightly rounded at the bottom which might contribute. I completely filled the base with water but it still moves around a decent amount. Is there anything I can do to stabilize the base more?