Bladetech Lightspeed Edge Hockey Steel RunnersBladetech Hockey focuses on two attributes: innovation and quality. They are the first company to introduce flexible hockey blades that help increase performance with added health benefits. This patented technology is known as the "Flex Force Advantage". Thanks to the unique blade design, the front portion of the Bladetech replacement skate blades flex up into the holder of your skates, stores the vertical energy, and then releases it when you extend