E-Z Tire Beads - Ceramic Dynamic Balancing 4 bags of 5 oz (20 total) fits 4 tires + Applicator Kit - No Lead, No Damage, DIY Tire Balance Includes 4 bags of 5 Ounces each (20 total) and Applicator Kit Premium ceramic internal tire balancing beads, durable, re-usable, environmentally friendly. Provides a glass smooth ride, all the time. Dynamically re-balancing tire during every ride. Dramatically extends tire life, preventing cupping. Eliminates the need for unsightly spoke or wheel weights that can fall off. E-Z installation either by adding the beads during the tire mounting process or using the supplied valve core application kit.