YORK applied its vast knowledge in bar design and produced perhaps the highest quality, most functional and attractive Economy Olympic Bar of today. YORK applied its signature design to each bar which replaces the outmoded bolt and sleeve assembly. Each bar has been manufactured heat treated from 150,000 tensile North American made steel. YORK's International Men's and Women's Needle Bearing Olympic Training Bars are an excellent choice for Olympic-style movements. The needle bearings ensure smooth, consistent rotation of the sleeves. The steel used in both bars is produced in North America.