Women's Olympic Bearing Bar, weighs 15kg, 25mm shaft, hard chrome plated, 8 needle bearings, 195,000 PSI tensile strength. Meets IWF Specs for dimensions and weight tolerances. The Vulcan Women's Bearing bar has the aggressive knurling that you would expect on a full competition bar. These particular bars actually have a 4" very passive center knurling, consistent with the men's professional bar. The rotation of the sleeves is super smooth. Snap ring construction. Warrantied from bending or sleeves departing. Lifetime warranty.