Didn''t think much at first, but after swimming just four laps I took them off.  Consistent two strokes less per lap after that.  I thought I had small hands but now wonder if I should have gone with the full size.

I use these paddles to help my swim lesson clients learn to "cross over" less on their hand entry. The paddle swivels when it is pulled through the water at an angle because of the fin on the bottom, increasing the swimmer's awareness that he or she is not entering straight. A great tool! It is a bit tricky to get the tubing through the holes when you're putting the paddles together, so be patient and use pliers!

It was at first difficult to figure out how to fit the rubber tubing through the tiny holes in order to adjust the fitting. The instructions should have said to cut the tubing on an angle to fit through the little holes. That did the trick.  Because I have really small hands, these were better than the larger ones.  I can't remember whether the 2nd customer service suggested that or my swim coach.

Like the other reviewers, had a hard time with the rubber straps. I used a drill bit to make the holes bigger and that did the trick. Once I got used to them, I found they work great and with continued use my stroke will benefit. They also could use one size in between this one and the bigger one.. my hands were too small for the big ones and almost too big for these.

The product itself is great and it's helping with my muscle memory.  HOWEVER, getting the rubber band things through tiny holes was nearly impossible.  I broke the rubber band thing four time and it's still just barely hanging on.

Very difficult to insert rubber into holes.  I haven't been able to do it yet so I can't use the paddles.  Rubber keeps breaking; at least rubber is long enough, but I don't know why they don't come with rubber already inserted in holes.  Wish they would have given some instruction as to easy way to insert the rubber.  I know once that is done it will help my stoke.