What's the best dog toy for a strong chewer?

What is the best dog toy on the market for strong chewers?

I have the same problem. Any kind of toy my dog just destroys in minutes. She really likes to chew on those solid bones and also for a ball there is those bright orange balls that are often used for road hockey and etc. I don't know how much this helps but I tried :P

I'd have ta say one of those long rope dog toys. they're sold everywhere