ENHANCED VEHICLE PERFORMANCE - ECO Balance glass balancing beads for trucks, motorcycles, and off-road vehicles provide an automatic, readjusting, trouble-free, lifetime balance of the entire wheel assembly EASY TO USE APPLICATION - The bag-in-bag balance bead application makes it easy to install. Place small bead bags side your tire when mounting new tires on to the wheels * (12) 4oz Balance Bead Bags, (12) Valve Caps and Cores INCREASED TIRE LIFE - ECO Balance tire balancing beads reduce rolling resistance with centrifugal force, reducing and providing a more even wear across your tires *ECO Balance does not void any tire or wheel warranties IMPROVE FUEL ECONOMY - Balancing beads help reduce resonating suspension synchronizing by balancing the wheel assembly with centrifugal force, decreasing fuel consumption over speeds of 55 mph, and increasing fuel savings ENVIROMENTALLY FRIENDLY - Made of reusable, recyclable 99.9% tempered glass bead spheres that are installed side the tire and wheel assembly, preventing any accidental contamination to the environment or damage to the side of your wheels To achieve maximum results, it is important to use the proper package size for each tire. As a rule of thumb, the amount of ECO Balance Beads required per tire is based one ounce per thirteen pounds of tire and rim combination. If you are not using an applicator and pouring the contents of the bag directly into the tire it is imperative that none of the contents of the bag ends up on the tire bead seating area of the tire and rim. If you are using our throw in bags, open & discard outside bag only & throw clear inner bag containing ECO directly inside tire cavity. ECO Balance disclaims any responsibility for air loss or tire damage due to improper installation or air check. In order to reduce the possibility of valve leaks, the use of the provided valve core and metal valve cap is recommended.