Answer:
I'm a ring of sliced onion dipped in batter and then deep fried.
What can get you there in eco style, pushed by your legs mile after mile?
What object has keys that open no locks, space but no room, and you can enter but not go in?
What hangs in the sky by day but at night goes away?
It's tough as nails, Or soft as snow. People use it for their rink, Some just put in their drink.
It is something you will never see again.