Outside dimensions: 2.68 inches Diameter (6.8 cm)
Inner Circle diameter:0.95 inches (2.4cm)
Material: Stainless Steel
There are a wide variety of applications for this piece of equipment! Simply mount with a screw onto your hive. It is designed with four entrance options: open access, queen excluder, ventilation, and closed.
VIDEO ON USING THE DISC (this is the large disc but they both work the same)