4 1/4 grip size

The SX 300 LS gives you the benefit of Spin Boost + Grommets, which are not only shaped to help the strings grip and rotate the ball but also positioned to optimize spin across a wider range of impact locations. Additional technologies include Sonic Core Infinergy, an ultra-elastic material that filters out harsh vibrations. Ultimately, with the SX 300 LS, Dunlop has provided a great option to the intermediate player who wants to ratchet up the power and spin.