Entrance opening limiter, colored

Entrance opening limiter, available in different colors: white, blue, green, yellow and red. The length of the entrance opening can be set between 368 ... 432 mm, height 50 mm. The entrance opening has two positions: with vents, for closing the hive and with 8 mm openings that allow the bees to pick up nicely. Made of plastic that is allowed to come into contact with food.