... Solid aluminum stents, for Various land Dirt Roller Skate,Skike,magic inline mountain skate,CE Approved,ABEC-7 bearing,with Solid aluminum stents ... at any ageMax weight: 100-150kgs Dirt roller skate composes:*1pairs dirt roller-skate*2adjustable poles:65cm-135cm*2 wrenches *1 ... requirements!Hope the cooperation with you sincerely. Dirt Roller Skate,Skike,magic inline mountain skate with CE Approved