黒いヘルメットを被ってひじやひざにサポーターを付けている男性がスケートボードでコンクリートのスロープを滑っている
There are many skaters at a skate park,skateboarder is shown performing trick on ramp,with his skateboard beneath him,skateboarder is in midst of trick,demonstrating his skill and balance,in background,several people watch skateboarder's performance