The AGF-TOP and AGF-ZGV are technically  almost the same in many ways.

But the AGF-TOP has one important feature on top of the AGF-ZGV. It comes with an extra writing strip strip for personal markings.

9.5"extension made of anodized aluminium,  rounded shape for ideal vibration damping, laserprinted scale.

Side mounting block, according to the international standards

Handy locking knob made of aluminium