Two entry holes: The entrance of the hive box is used on the hive and has a square entry hole. Easy to install: Install the plastic bee nest door on the hive to facilitate the entry and exit of bees. The product size is 12cm. Protective function: Plastic beehive doors can help protect the hive from attacks by mice and insects. Essential for beekeeping. Ventilation design: The honeycomb door is designed with ventilation holes to keep the hive ventilated and allow air circulation. < p>Use plastic material: The hive doors are made of high quality plastic material, safe and durable, long service life. Note: The data is all manually measured, please allow an error of 1-3 cm. Due to differences in light and display, there may be color differences. Please refer to the actual item received.