Funny I just posted this same message over at MOS and it was gone within 10 minutes.so anyway they sell this silly power-assist device over at MOS for stretching, well I found an indestructible one at the Pet store believe it or not for about $15.00 .it’s called the nylabone dog tug. You can Google Nylabone.com and search for dog tug. Or you could look up rubber dog tug and find different kinds. I think they might be upset over at MOS because I would have killed their sales of that power assist if they didn’t remove my post. This really helps with your stretches and is next to nothing in cost.and who is going to ask any questions when your at the pet store buying one. Damn I’m good..