Markins Q-Ball Q3 Traveler with Knob Release (black) mounted onto a Gitzo GM5561T Traveler Carbon Fiber Monopod.

The ultimate pro-grade monopod set up with ball head.  About $600+ for both when new.  Very strong and light set up, perfect for sports photographers, birders, street shooters and more.  

Great condition with a few minor dings and blemishes normal with wear, but nothing that would impact performance.  Combo works perfectly - including the ball head and monopod.

What is pictured is all that is included - which includes the foot ground stabilizer.

You can find specs on Google, but Gitzo and Markins are high end.

Not used that much at all.  Good find for someone looking.