I just bought this one with a metal frame, though it's a bit larger (29" x 31") and more $ than mentioned in the original post. I had some Cabelas bucks to burn and got free shipping and am all in for around $100. It's quite a bit heavier than I thought it would be so won't be as portable as I had hoped. I've made my own bag targets from burlap feed sacks from Murdochs stuffed with plastic and is what I will likely do again for a more portable target.

[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]