Dirt Roller Skate,Skike,magic inline mountain skate, CE Approved,ABEC-7 bearing, with Solid aluminum stents, for Various land ... Dirt Roller Skate,Skike,magic inline mountain skate,CE Approved,ABEC-7 bearing,with Solid aluminum stents,for Various terrains ... . Faetures:1 Wheel diameter 5.25~6.25 inchesball bearings ABEC-7 ( industrial quality)stable, light aluminium construction ( about 1 ...