Sonic X brought about a bop bag revival. Notice though, that these are by Toy Island, and also have a different shape than the previous 2. This should also be a Big Lots find. If you just need to punch inflatable bags for some reason...Ebay may be a better bet, though.
What does the box say? Basically about how it's weighted, safe, easy to use and works inside or outside.
Additional Info
- Region: America