The EAST WEST Hepta features an impressive 216 000 PSI while maintaining Olympic standard shaft dimensions, including a 25mm competition standard bar diameter. What does this mean? It means we don’t pack on extra steel to increase the PSI, but rather heat treat the steel to get its strength . Many barbell companies thicken the bar with cheaper steel to achieve a higher PSI and still can’t achieve a tensile strength comparable to ours. We go above and beyond to provide you with the strongest, highest quality materials possible. The brass alloy bushings provide a smooth and consistent rotation on the sleeves, and the manganese phosphate finish give you the feel of bare, raw steel, as it’s meant to be.