1User Friendly Design: The egg tester light is designed for ease of use, making it an ideal gadget for students, home incubators, and even beginners in egg incubation. 2Adaptable Attachments: Egg candler tester comes with flexible attachments, featuring soft rubber ends that can easily adapt to various egg sizes, providing versatility and convenience. 3Egg Development Monitoring: The strong light source ensures you can clearly see the delicate veins and movement within the egg, even allowing you to witness the chick trying to break through the air sac. 4Secure Grip: Whether checking quail, duck, or chicken eggs, the gentle yet firm grip ensures a close seal without the risk of breakage, providing protection and convenience. 5Ideal Educational Tool: Our egg candler is perfect for classroom enjoyment in schools, allowing children to experience the hatching process easily and joyfully. 1 x Egg Candler 1 x Battery Compartment 1 x Data Cable 2 x Accessories