This i.S1 is a stretch 27.5 inches long and weighs 9.2 oz. It is composed of Graphite racket reinforced with Titanium and incorporates Head's revolutionary intellifibers which actively stiffen the racket at impact and give unbelievable power while absorbing up to 20% of the vibrations. The beam width is 23 mm and the balance point is at 330 mm unstrung for an extemely quick racket head. Recommended string tension is 53 to 63 lbs in this 16X19 pattern. Head recommends intellistring for this frame and it also plays well with a stiff center core string like Gamma TNT or Wilson Extreme Control if you are looking to maximize the accuracy of your shots. This racket comes with the vibration absorber and finishing grip band. No cover available.  The recommended string tension is 55 to 65 lbs in this 18X20 string pattern. I recommend going down 2 lbs on the cross strings to equalize string pressure throughout the string bed.