Ok then i would suggest something that is durable and holds tension so you dont have to keep restringing when the strings get loose. I would suggest Weisscannon Silverstring, Solinco Tour bite, or the Volkl Cyclone, or the Tourna Big hitter blue rough. These strings are really good. I like the tourna big hitter blue rough and the volkl cyclone.
But if i were to choose between these 2 i would choose Volkl Cyclone. It got really great scores on the reviews from TW and people love it too! Plus its only $8
Here are the reviews :
https://www.youtube.com/watch?v=9h92XWER4hI
http://www.tennis-warehouse.com/revi...CYCReview.html
If you have more questions keep asking! We will help