MY WIFE AND I JUST UPGRADED FROM 10 YEAR OLD PRINCE RACKETS TO THIS WILSON. MY GRIP IS 4 3/8 AND HER'S IS 4 1/4. WE ARE JUST PLAYING FOR FUN AND EXERCISE. WE ARE NOT RANKED, AND WE ONLY PLAY OUTSIDE DURING FAVORABLE WEATHER. THESE RACKETS ARE LIGHT, STRONG, RESPONSIVE AND FORGIVING. BOTH OF OUR GAMES HAVE IMPROVED WITH THIS WILSON. VERY SATISFIED. I WOULD SAY THIS IS A GOOD CHOICE FOR BEGINNER THROUGH INTERMEDIATE.

I am a beginner who is taking lessons for tennis and this is my first racket, I will tell you what I like and dislikes (which is really not the racket's fault), and why I still give it a 5-star rating.
I like:
1. Cool appearance of the racket
2. You can't go wrong with Wilson
3. Good rating on Amazon, that is why I decided to purchase this one.
4. Fair price.
5. Black handle so I know it will not get dirty with prolonged use (as opposed to white handle, which I suspect will turn dirty or yellow after a few months)

I "dislike":
1. I like to inspect my purchase very carefully for any defect, so please inspect yours for any damage, dents, or scratches. Which I did found on one of my purchase and had a replacement.
2. Head size is 110! Place read the details of this racket carefully if you are specific on the head size you want. When I first buy it, I didn't even know that there is different head size, I only know there are different handle size. When I first used it, I always feel that my racket is bigger than my classmate and instructor's racket, when I realized it's not my imagination, I finally asked my instructor. He said the size is big but it's a great racket, I just have to be more gentle when hitting the ball (so something like that), and he prefers to use head size in the 90s I think (I don't remember the exact number).

Note on "dislikes": I like to do rating in the product itself, NOT the seller or shipping methods because they tend to change a lot. So when you (or I) think about it, the 2 dislikes that I mentioned is not really the rackets fault (though I don't know how long it will last, because I haven't used it for toooooo long), one due to maintenance/shipping by the seller/shipper, and other is because my lack of knowledge about different head size and didn't know to read the details carefully before purchase. So in the end, I still love this racket!

Delivered fast! Exactly as described and great product. Terrific balance and stoke speed allowance. Factory strings are much better than those bought in the average store. Should replace within 3 months, though. Definitely recommend.

I had playing with the same racket for the past 7-8 years, and this time when the string broke, I decided to get a new one. I have now played twice with the Wilson Hyper Hammer, and what a difference; the racket is so forgiving that my off-center shots still have decent speed, and I am making fewer mistakes at the net. It is both lighter and bigger than my old Prince racket. Wish I had switched to this years ago !

Im a beginner in tennis and bought this racket base on reviews I saw and it hasn't dissapointed me at all. This racket feels great and its very light compare to other racket I've tried.