My block lasted forever until I started shooting broadheads ate it. Get some real high density styrafoam. It's alot cheaper. Just shoot your broadheads at that at get a new chunk each year. Ft Belvoir has a hunting program and they use the high density stuff on their indoor broadhead range. That stuff gets the SH&^ pounded out of it and it takes a long time to get a pass through. It would probably last 1 or 2 people a few years as long as you don't leave it outside. When we shoot our target arrows into it you have to use an arrow puller to get your arrows out and it's still not easy. Don't waste a Block or anything like it by shooting it with broadheads.