[Easy to Operate]This bee entrance discs door is simple to operate, high performing, and cost-effective. [Premium Stainless Steel Material]This beehives nest door is made of stainless steel material, anti-rusty and. [Timely Flowing the Air]For timely flowing of the air in the beehive. The round beehives nest door is a good helper tool for the beekeeper. and healthy. Easy to use. [Four Access Options]The beekeeping tools provide four access methods: fully open, queen excluded, closed ventilation and fully closed. [Easily Access and Out]Install it on the beehive to easy for bees to in and out., Manufacturer: Akfldms