high quality Features: 1. This item is eggs tester which can be used as a flashlight 2. You need to prepare 1 AAA battery. 3. Cold light to prevent overheating eggs with an opening smaller than the diameter of the eggs. 4. Apply to any size egg. 5. It can help you to see the contents in eggs and you can check whether the eggs are developing properly. Incubator Lamp only,other accessories demo in the picture is not included. Specification: Material: Stainless Steel Length: app.10.5cm/4.13in Color: As the pictures shown Battery: 1 x AAA Battery(Not included) Quantity: 1 Pc Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Incubator Lamp