Wonderful, i can now swim in place for so much longer than before I was using this. I use it every day. Excellent.
I have two of these so a friend and I can exercise together in my indoor pool. We use them for all strokes, running, and even when lifting weights in the water. Comfortable and well designed. Just wish it came in a neutral color instead of red.
I've been swimming on the tether for 8 years, since we put our pool in. I swim about twice a week, count my strokes until I hit a mile. This has been the perfect solution for a dedicated swimmer with a not-very-big backyard pool.
I love my swim tether!