Bit hard to review this item because I hate them. Why then am I giving them the highest possible review, well that is simple because they truly do improve your stroke. Rather than giving you a artificially enhanced catch like normal paddles or swim gloves they actually take your hand out of the equation when using them forcing you to correct stroke and use your whole forearm to catch the water. This is extremely frustrating on the intervals when you are using them but gives such a notable and marked improvement in stroke or more specifically catch once removed. In my opinion they are better than similar ideas such as fistgloves by total immersion as the shape keeps your hand in proper position and buoyancy means stroke feels normal.