This simple but professional Device are designed for egg embryouse, with this simple tool you can know the Incubation information morecorrectly and more easily. Equipped with cold light unit, avoid too heatto damage the eggs. Fit for usual kind of eggs like chicken egg,egg, egg use perfectly.Features-Color:Blue-Material:Aluminum Alloy, ABS-Size:10.50X3.20X3.20cm/4.13X1.26X1.26inNote:3 x AAA batteries(not included)Light:cold light-Candler for checking if eggs are fertilized or growing. Professional and practical.-This Egg Candler Light features of fast, safe, extremely easy and bright.-By shining a Candling Torch through the eggshell, you can often make out signs of as and when they take place.-This Candler is easy to carry and can be used indoors or outdoors. Aluminum alloy material, bright, simple and generous.-The workmanship of this product is perfect, and you will have a good experience in using it.Package list: 1 Egg Detectord