HIGH-QUALITY MATERIALS：This honeycomb door is made of quality plastic material. It is non-toxic, safe, sturdy and durable. FOUR ACCESS OPTIONS: Full opening, queen bed exclusion, closed with ventilation and completely closed. USAGE: This round hive honeycomb door is used to control access to the entrance of the hives. VENTILATION DESIGN: With the vent hole, this hive disc can also keep the hive ventilated to allow air to circulate freely. CONVENIENT FOR BEES INSIDE AND BEES: Install the beekeeping equipment on the hive to facilitate the entry and exit of bees. Shipping quantity:3; piece