PHANTOM O3 100 (Phantom O3 100) New, Unused Grip Size: 2 I accidentally purchased this, mistaking it for the standard version. This is the O3 model. I will not string it, but I will include three service strings. This is a competition model with a 16.5mm shaft, the thinnest part, which is a hallmark of TeXtreme technology. By incorporating TeXtreme x ZYLON in the shaft and the 2 and 10 o'clock positions of the face, it achieves powerful shots despite its thin frame. It's easy to swing quickly, and it's characterized by a feel of gripping the ball and hitting it. PHANTOM O3 100 (Phantom O3 100) [Product Number] 7TJ231 [Material] High Elastic Carbon + TeXtreme x ZYLON + High Molecular Elastomer [Head Size] 100inch2 [Length] 27.0inch [Swing Weight] 290 [String Pattern] 16 x 18 [Color] Ocean Blue [Average Weight] 310g [Balance Point] 310mm [Frame Thickness] 20-20-16.5mm Popular Series: Phantom Model Number: O3 100