Features: High quality of materials. This cage door is specially designed for bees to prevent them from escaping. Mini size but useful. Installing on the bee box and effective to control bees escaping. Made of stainless steel,it is high intensity and durable. 5 pcs of door only,other accessories demo in the picture are not included! Specification: Material: Stainless Steel Type: Anti-escape Color: Sliver Diameter: 6.8cm(2.68in) Small Circle: 2.4cm(0.95in) Quantity: 5 Pcs Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!