Description This simple but professional device are designed for aquaculture use, with this simple tool you can know the Incubation information more correctly and more easily. Equipped with cold light unit, avoid too heat to damage the eggs. Fit for usual kind of eggs like chicken egg, egg, goose egg use perfectly. Features -Color:Blue, black -Material:Aluminum alloy, ABS -Size:11.30X3.80X3.80cm/4.44X1.49X1.49in -Power supply: 3 AAA batteries (not included). -Professional designed for aquaculture use, high light can let the user know the Incubation information correctly and directly. -Cold light to prevent overheating eggs with an opening smaller than the diameter of the eggs. -Fit with usual size egg. Let you use is more freely, which can give you a great usage experience. -Manufactured with superior materials, practical and durable for a long term use. -It can help you to see the contents in eggs and you can check whether the eggs are developing properly. Professional designed for aquaculture use, high light can let the user know the Incubation information correctly and directly. Cold light to prevent overheating eggs with an opening smaller than the diameter of the eggs. Fit with usual size egg. Let you use is more freely, which can give you a great usage experience. Manufactured with superior materials, practical and durable for a long term use. It can help you to see the contents in eggs and you can check whether the eggs are developing properly.