Answer:
Two horses, swiftest traveling, harnessed in a pair, and grazing ever in places. Distant from them.
It is worldwide, but once only a spider could weave one
Soft and fragile is my skin, I get my growth in mud. Iām dangerous as much as pretty, for if not careful, I draw blood.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
I start with T end with T and within me is T.