Pacer ATA-600 Quad Speed Roller Skates Man Made Boots: Pacer speed boot with custom embroidery, composite ankle support, quick-dry lining, and Velcro power-straps Plate: RTX 6000 nylon plates with adjustable toe stops Wheels: Pacer ETX Pro Formula Speed Wheels (63mm x 42mm) Bearings: Chrome ABEC 7 race bearings Sizes: Men's black/red 4-13, Men's black/purple 4-10(Ladies go down one size)