Features: 1. Made of high quality stainless steel material, anti-rust, strong and durable for use.2. This cage door is specially designed for bees to prevent them from escaping.3. Installing on the bee box and effective to control bees escaping.4. With the ventilation hole design, you can also keep the hive ventilated for air flow.5. Made of stainless steel,it is high intensity and durable.Specification:Diameter: 6.8cm(2.68in)Small Circle: 2.4cm(0.95in)Material: Stainless steelcolour: As shownPackage Contents:20 x honeycomb door CageOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.