Robby's Revs The new standard in lightweight, adjustable power. Made of feather-light duraluminum, the Robby's Revs is a breakthrough in wrist support, because it conforms to your exact needs. The Robby's Revs I features extended finger support that provides maximum power for oilier lane conditions. Lateral adjustments allow your hand to be in position to alter the amount of forward roll an Sizing: To determine your correct Robby's Rev I, II or III size, measure (in inches) from the base of your palm to the tip of your middle or longest finger. You should use your dominant hand, the righ --Small: 6.75-7"