King Blade X10 III Set of 6 Authentic product from Lui Fan Japan. Used at every live performance after purchase, so there are overall stains and wear. There are no problems with the way it lights up, but please note the following: ・The battery cover doesn't close tightly. 　The lid closes, and I've never had the battery cover fly off even after waving it for over 3 hours at a live performance. ・The string for removing the battery is detached on one of them. (See photo 5) ・The penlight with the detached string rattles slightly when shaken. This does not affect use. ・Some of the straps have cracks. (See photo 6) ・Rhinestones are attached to the back to make the buttons easier to press. (See photo 9) ・Color tuning wiring is included. However, I haven't used it since I changed phone models, so I haven't confirmed that it works. Consider it an extra. Please refer to photos 10-11 for how it lights up. I've used these for several years at live performances, so they're quite well-used. I'm selling them because I bought new ones when I changed phone models. They are not perfectly beautiful, but they work without any problems. I can include batteries for initial operation check if you wish. Please replace the batteries when you use them. Shipping via Mercari. I will pack and ship via Yu-Yu Mercari delivery (post-in type) or Takkyubin (home delivery). Feel free to ask any questions.