Prestrung Head Gravity Jr, what string?

[slimsim22]

I just bought a Head Gravity 360+ jr 26" racquet for my 9yr old daughter. The racquet came prestrung and the string feels like a really stiff/hard black poly. The only words written on the string says "HEAD". Can anyone tell me what type of string this is? I string my own racquets and would consider putting in something better for her if the string is garbage

 

[tennisislife4622]

If it is a factory string then yes, it is complete garbage. If she is 9 it should make no difference though....

 

[slimsim22]

Im just thinking of putting some colored 17g prince synthetic gut in instead. I did this on her 25 and it plays pretty good l