I've had the same ProStop Mag target for 2 years now going on3,and it's holding up pretty well. I started shooting through itearly last year. When I took it down and cut a slit in the top of it to rearrange the stuffing, I discovered the secret ofit's guts.

Insidethe front and back, close to the outside of thecover bag is aBURLAP bag with the poly insulation in the middle. It was doubled on both sides , but worn in the middle where I was shooting through it. I took out the front burlap bag and folded it to get rid of the worn part and stuffed it back in. I did the same for the one on the back. Jumped on it a couple times and It's back to stopping arrows again. I even got a burlap bag to add to it next time it needs fixed. The burlap really makes a difference in the life of this target.