Track is 29/32″ x 11/16″ x .050 extruded 6063T5, anodized aluminum. Inner surface is center ridge-grooved for easy installation directly to ceiling or T-bar. Suspended component available. If specified, tracks will be bent or circular curved from one continuous length up to 20′. Bends will be approximatly 18″ radius. Smooth roller carriers with stainless steel hooks are provided at intervals of 2.2 per foot. This superior roller system does not jamb or bind due to extended use. Maximum weight per foot: 2.4 pounds.