SlackBow SlackBlock Athletic Balance Trainer - Improve Balance, Stability, and Athletic Performance - Condition Your Body and Prevent Injury - Compact and Portable - 15"

BALANCE IS POWER: SlackBlock develops your dynamic athletic balance to improve agility, coordination and speed. Lower your handicap, up your batting average, throw farther, run faster and reduce injuries! FULL-BODY WORKOUT: Crafted With Pride in the U.S.A.. Used by national championship professional and college teams. Engages multiple muscle groups simultaneously to achieve a well-rounded workout that helps you play your sport better. COMES IN 3 SIZES: sized according to your weight. 13" for people who weigh less than 190 Ibs 14" for people who weigh more than 190 lbs and less than 230 Ibs. 15" for people who weigh more than 230 Ibs. If your weight is in-between, select the larger size. COMPACT AND PORTABLE: Take your balance training on the go! The SlackBlock is compact and lightweight with a reusable box, making it easy to use at home, gym, and work SIMPLE AND EFFECTIVE: build stronger, more resilient, and reactive muscles with SlackBlock. Designed by the author of Balance is Power and the developer of the patented SlackBow Athletic Balance Training System.