This is a high quality Smyle Labs – Red Ball Cartridge Battery. This is a officially licensed Smyle Labs – Red Ball Cartridge Battery product that is made of 100% polyester.
Introducing the “Red Ball Battery” –  Features a convenient side hole for key-ring or a lanyard attachment. Simply twist on your accessory, press the button 5 times, and light up!
🔥High performance twist-on battery
🔥3 adjustable settings
🔥Included flashlight bulb adapter
🔥USB-C charging