The swimmers are delighted.  I remember this type of product from my childhood and wanted the young people to have as much fun as I had.
The quality is GREAT!!

I am a swimming instructor and come from a family of swimming instructors who have taught for over 35 years and I personally have taught lessons for about 15 years. I thought these would would be great for teaching some of my underwater skills, but they unfortunately fall short. There are two problems, they tend to turn in the water, especially when you swim by or through them. They are too thin, a thicker diameter would be better and easier for kids to see. An attachement to snap all the rings together to form a thicker ring or a tunnel would be great. I plan on tryin to rig something myself. These probably are alright for kids playing, but using them for skill drills are kind of a pain and  I will probably go back to my weighted hoola hoops.

My girls used these when they were young and couldn't find them anywhere. Bought these for the grandchildren. There lots of fun in the pool

These were decent quality for the price