Although unopened, the packaging is damaged due to being stored by a non-professional. The following is from an online shopping site: Choose your crystal and develop your own lightsaber! Uncle Milton, a British manufacturer that develops scientific experiment-based toy items, presents the 4-Color Mini Lightsaber Development Kit from the "Star Wars Science" series! This is a science experiment toy that allows you to assemble the lightsabers that appear in the Star Wars movies, and it's a three-dimensional model that's about 21 cm long. It has a light-up function, and you can change the color of the light blade by swapping out the included red, blue, green, and purple crystals. You can create your own lightsaber! Also, two types of lenses are included, one for focusing and one for wide-angle, so you can also use it as a mini light with different patterns! This item is a must-have for Star Wars fans and is also recommended as a gift! Enjoy the world of Star Wars with this item, which you can enjoy from the "science" aspect! ● Manufacturer: Uncle Milton ● Light-up function ● Batteries: 3 button batteries (LR48) required ● Size: Approximately 21cm long Item type... Penlight