Labeda wheels and chassis combine to create the fastest skating position and the first wheel with flex technology in the Reebok ® Senior 5K Roller Hockey Inline Skates. A durable, stiff nylon quarter and lightweight outsole provide a powerful energy transfer for each stride you take. Make quick cuts and directional changes with the smaller core design that maximizes your grip, allowing you to beat out your opponent to score the winning goal. FEATURES:4 x 80 mm wheelsDurable, stiff nylon quarter for a more powerful strideLightweight outsole construction for maximum energy transferLabeda chassis for the fastest skating positionLabeda gripper wheels, the first wheel with flex technologySmaller core design maximizes grip on each strideABEC 7 bearingsReebok