These 25 x Mizuno RB Tour X golf balls are an A/B Clearance Grade. They are balls that have only been part graded and may have small signs of previous use with play/pen mark, or slight off white discolouration, but still have plenty of play life left in them. Mizuno RB TourX is a faster tour ball with incredible performance in the wind – due to Mizuno’s drag reducing C-Dimple. Soft and responsive around the greens – with a 4 piece construction and high traction urethane cover. Mid/low driver spin for flat to upward attack angles. Great Value.