I think I like the Speedo design (with one end bigger) better

I love the swim buoy. Besides using it to work your arms (the buoy goes between your thighs while you use your arms only) you can hold it out in front of you and then kick so it is like a small kickboard.  It doesn't take up very much room in my gymbag.  YOu can also make up water excercises using the swim buoy.  It's great!! I bought the pink and white one since pink is my favorite color!

I use this for every workout.  Usually I use the ones at the pool, but the public pool is closing and the 24-Hour Fitness doesn't stock "pool toys" for us lap swimmers.  Works great and I love the color =)

Very comfortable and portable. I love using this while working on technique.

Too small, had hard time keeping betwen my legs

I use it for pulls, of course. It's a good, average pull buoy for the price. It floats. Some buoys last longer than others. This one feels sturdy, but its longevity is unknown. I've been using it for a mere month.