Queen Excluder Entrance Guards 8 oz muth They're one of the most

They're one of the most popular jars for that

bee-tight fit

and they work as bulk drinkware for cafes and event venues

This one is solid cotton rather than mesh

Queen Excluder Entrance Guards 8 oz muth They're one of the mostEntrance mounted guards that double as a queen excluder at the hive door. The slotted metal strip lets workers come and go but keeps the queen from leaving handy for stopping a swarm from absconding or holding a queen in a new hive. Features Slotted guard passes workers and blocks the queen and drones. Mounts over the entrance no need to open the hive. Sized for 5, 8, or 10 frame hive entrances. How it works Tack the guard across the entrance.