the Round Shape LED Keyring Chain is a Practical & Durable Accessory Crafted From Abs Material. This Compact Keyring Features a Built-in Button Battery, Powering the LED That Lights Up Brightly with a Simple Press of the Button. the Round Shape Adds a Touch of Simplicity & Elegance to the Design. Made for Convenience, This LED Keyring Chain is Easy to Carry & Store, Making It a Useful Companion Whenever You Need a Light Source on the Go. Whether Finding Your Keys in the Dark or Searching for Something in Your Bag, This Keyring Chain Provides a Reliable Solution. as a Promotional Item, It Offers a Functional & Attention-grabbing Way to Showcase Your Brand.