Features: Advanced LED lighting system ensures precise embryo monitoring for eggs with uniform brightness. Lightweight, durable metal construction and a touch candling for both beginner and experts. Essential tool for avian breeders, pet owners, and poultry farmer needing reliable eggs development tracking. Perfect for home hatcheries or professional aviaries to supervise eggs weekly without disturbing nests. It accommodates multiple bird species’ eggs, featuring magnetic surfaces to maintain hygiene standard. Specifications: Component: Metal Size: Approx. 7cm/2.76inch Quantity: 1 Pc Package Includes: 1pc eggs Candler Tester note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.