Reusable ABS Material The queen cage is made of high quality ABS material, stable and firm, sturdy and durable, and can be used for a long time. Queen Bee Cell Cages are made of ABS and comfortable to wear, easy to clean and wash. Diameter: approx 4.7 cm. Colour: yellow. DESIGNED FOR The queen bee breeding box is used to isolate the queen bee on the honeycomb. It will not harm your queen bees. The beekeeper breeding box is easy to use to catch a queen bee and saves time and energy when catching a queen bee. REBLE BEE ROWING BOX Yellow queen bee cages are reusable and washable. This beekeeping breeding box can be used repeatedly after washing and you a good user experience during prolonged use. Please allow slight errors due to manual measurement. GOOD BEEKEEPING TOOLS This beekeeping accessory is an essential tool for beekeepers. It is excellent beekeeping equipment for beekeepers, which provides beekeepers with the most convenient and efficient extraction method and facilitates the work of beekeeping. Practical use scenarios - Queen rearing and mating operations: isolate the queen on the honeycomb without harm, enabling careful management during breeding. - Hive inspections and queen relocation: quickly catch and control the queen to minimize disturbance to the colony. - Queen marking or treatment preparation: temporary isolation to allow safe marking or treatment steps without worker interference.