The egg lamp is made of and durable aluminum alloy and ABS material, which is sturdy and durable for a . The egg lamp can observe the growth of, when the light is on, you can clearly see the degree of in the, and you can easily degree of of Feature - Color: Red, Black - Material: Aluminum Alloy, ABS - Size 1: 11.30 X 3.60 X 3.60 cm/ 4.44 X 1.41 X 1. - Size 2: 10.30 X 3.60 X 3.60 cm/ 4.05 X 1.41 X 1. ; - Size 3: 10.20 X 3.60 X 3.60 cm/ 4.01 X 1.41 X 1. ; - Size 4: 12.00 X 3.60 X 3.60 cm/ 4.72 X 1.41 X 1. ; - Power supply: 3 AAA batteries ( not included ). - The egg lamp is made of and durable aluminum alloy and ABS material, which is sturdy and durable for a . - The egg tester can observe the growth of the, when the light is on, you can clearly see the degree of in the, you can easily degree of of - The egg tester is very durable with an easy to open and close button. - The egg adopts high- transmittance and high- brightness lamp beads, which is beautiful in appearance and easy to carry and use. - The egg tester is not only suitable for people who want to hatch, but also suitable for students to learn the process, suitable for school fun classroom or laboratory. Package Included 1 x Egg Incubator Light Package list: 4 Egg Detector