Roller Derby Skate Corp Laser 7.9 Girls" Speed Quad Skates: * Reinforced comfort fit boot with heel stabilizer and padded collar * Skate chassis: Tru-Trac * 54mm wheels * ABEC 7 bearings * Laces and Velcro power strap * Available in 6 sizes See our entire assortment of bikes and ride on toys at Walmart.com.