FLASHING RED LED STROBE, USB-C Rechargable, Waterproof, Flashing Strobe or Constant On Mode, 20mm x 70mm with Rubber Mounting Strap, Bike Light, Volcano Bicycle Rear Tail Light

Features:

Material: ABS Plastic
Charging interface: USB 
Battery capacity: 330mAh 
Mini and compact, lightweight design. 
Ultra-long battery life, built-in polymer battery. 
Waterproof design.
Rubber waterproof switch, press to switch modes, 4 differnt modes.
Mounts with a strong rubber strap, suitable for different seatpost sizes.
Modes: Bright light - slow flash - flashing - fast flash
Size: 7 x 1.9 x 1.7cm 12. Weight: 24g