Matter Quad technology was momentous in following behind Matter inline technology. Matter Inline has taken the skating world by storm - dominating the past two world championships, setting countless world and national records. Formulating the world’s best wheels is no surprise when combining Matters proprietary urethanes and new core technology. Hybrid Hollow Core technology (HHC) eliminates reason for Aluminum, coming in 25% lighter with the ability to modify stiffness of the wheels without sacrificing speed or grip through urethane manipulations. HCC is in fact the first real technological enhancement in 20 years. Matter’s Superior Wheel Engineering has surpassed expectations, setting new standards across the board…Speed, Jam, Derby and Recreation.