A science kit that allows you to enjoy light experiments. - Product Name: Light Master Special Experiment Set - Target Age: 11 years and older Thank you for viewing. This is a supplement from the 2019 Shinken Zemi Elementary School Course Challenge 6th Grade August issue. I have used it several times, but all the contents are complete and in good condition. There is a tear in a part of the box. Please refer to image 4. Operation has been confirmed. The remaining battery life is unknown, but I will ship it with the original batteries inserted.