Answer:
Twigs and spheres and poles and plates. Join and bind to reason make.
Brown I am and much admired; many horses have I tried; tire a horse and worry a man; tell me this riddle if you can.
What can be seen but never found that only hides in the unwound?
What does no man want, yet no man want to lose?
I bind it and it walks. I loose it and it stops.
Why is the letter B always cool?