Counteract Balancing Beads -Thrown-In Bag. Counteract's clean, trouble-free balancing micro-beads provide continuous self-adjusting balance with no clumping. Just open and the outside package and throw the inside bag into the tire. After using an air blaster to set the tire on the rim, the pressure inside the tire will collapse the bag containing the balancing beads or the package will break open soon after driving. Available in application sizes from passenger vehicles to heavy trucks.