Sonar Swing Grip Combining a network of functional micro-textures with a ground-breaking new grip compound, the new SONAR provides outstanding comfort and unmatched performance in all conditions. Slightly softer feel and super-tacky surface make SONAR the ideal grip for a wide variety of golfers. Made with a proprietary compound that maintains its feel and tackiness in all conditions Proprietary Micro-Texture Technology provides a comfortable and secure grip connection Straighter, reduced-taper shape promotes hand unity and eliminates excess grip tension Exceptional all-weather performance Superior torsion control ensures greater shot consistency and control Incredibly comfortable material and surface pattern ideal for a wide range of golfers Specifications: Grip Size: Undersize, Standard, Midsize, Oversize Weight: 47g, 53g, 57g, 77g Core Size: 0.60"