EXO3 Technology transfers up to 26% more energy back into the ball at the moment of impact, resulting in more spin, pinpoint accuracy and extraordinary comfort and feel. Headsize 100 sq.in Length 27 Unstrung Weight 270g 9.5oz Swing Speed Medium Fast Balance 34.5 cm 13.6 in, 1 pt. Head Heavy Swing Weight 280 Cross Section 23 25 22 mm String Pattern 16x19 Composition Construction GraphitExtreme Power Level 1100 With Cover