The Wilson Juice Pro BLX is a striking new update to the Pro series of BLX frames, and is used by Juan Martin del Potro. Offers a lighter weight, more forgiving alternative to the control-oriented Wilson Pro Staff line. Spin oriented, moderately wide 24/23mm tapered beam design for added pop, and the 27.25 inch length provides additional reach. Wilson continues the use of Basalt fiber (BLX) technology for improved feel and frame feedback, continuing to feature classic feel in the same tradition as the previous-generation Pro Tour BLX.The Juice Pro BLX retains a classic 'tweener design, now with a more open 16x20 string pattern (delPo's preference), 12 oz. strung weight, and head light balance.