NDZ Pro-Lock clamp feed system. Features posi-lock. The lever normally wants to remain closed. We also made them with an internal cross hatched pattern to firmly grip and hold on whatever you may have, Egg, Halo, etc. Click on pic or here for larger view.

* clamp or unclamp your hopper at the flip of a lever, just seconds
* internal crossed hatch pattern for a firm solid grip
* set it quickly to hopper using an allen key or for fine adjustment
* small,sleek with a low profile. The smallest on the market