Microtubule
Clip art by Harmonic
![Free clip art "Microtubule" by harmonic](https://d29fhpw069ctt2.cloudfront.net/clipart/100300/preview/MicroTubuleFormation_preview_61ce.png)
Microtubule
ExclusiveClip art by Harmonic
License:
Free for personal and commercial use, with attribution to Stockio.com. Not for sale or redistribution.