Pro D2x is a dual-molded compound boasting a firm rubber upper and softer rubber lower section in a dual-color design. The firm rubber, all-weather lower section combines comfort, feedback and feel for a true connection between the player and the club. .58 Core. Available in Black/Blue, Black/Yellow, Black/Orange, Black/Red & Black/White. Weight: 51 grams (+/- 2 grams).