Answer:
This only turns over once you have travelled very far. What is it?
Sometimes black, sometimes white, I have veins but no blood
My tongue hangs out as I run over fields and streets all day. I get tied up every morning and untied at night.
It stands upright and can be quite grand. Its secret is not hidden but right at hand. What is it?
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.