Not sure what type of tree I got it off of, but it doesn't have any bark on it, and it is grey. It's thick, not thin or breakable AT ALL.. trust me.. I tried breaking some of it (even the thin parts) and it was a pretty tough branch.
Here are some pictures:
Oh by the way that last picture was me holding it up, not holding it in my palm on the ground, which it kinda looks like I'm doing.