This round plastic entrance gate has 3 positions:

• ventilation only

• queen excluder pattern (to allow only workers through)

• fully open

You can add this gate to any nuc or small hive by just making a round hole to provide access to the bees and then screw (screw not provided) the gate right above the hole. Then you can turn the gate to change the position.

Gate diammter is: 2″

Max entrance hole diammeter is: 1/2″