TwistLit LED Bike Light Size:ONE SIZE Its foam core means it's

Its foam core means it's always ready to roll

GEAR RATIO Chainring set-up: up to 3 sprockets

support and heat retention

Additionally

TwistLit LED Bike Light Size:ONE SIZE Its foam core means it'sGlow and Flash Modes Weather resistant Battery Life: 20 hours Glow 25 Hours Flash Power: 2 x CR2016 lithium coin cells (Included and Easily Replaced) Tool free! Attach and detach with ease! Includes two 7" Gear Ties to easily grip to nearly any bike surface. Gear Tie Technology: Tough rubber shell provides excellent grip anywhere on your bicycle but wont scratch or mark. Strong internal wire that holds its shape. Quick and easy to securely attach and