Made of quality stainless steel, not easy to rust and broken, durable, can use for a long time.Size: 2.76*1.97 inch(7*5 cm); Color: silverEasy to use, just open the clip, close it gently after picking up the queen, the worker bee can go through the slot.Designed for trapping the queen, it is useful for beekeepers, can help you catch bees quickly.Suitable for catching queen bee, no harm to the queen bee.Note: The data are manual measurement, please allow a 1-3cm error, due to the differences between the light and the display, there will be a certain color difference, the specific received in kind prevail.