BBB BLS-122 SPY rear light

The rubber O-ring allows mounting almost anywhere on the bike
Compatible with classic and aero saddles

One red LED.
Waterproof design.
Two lighting modes: flashing and continuous lighting.
Supplied with 2 x CR2032 batteries.
Weight: 23 grams.
Dimensions: 31 x 42 x 28 mm.
Lighting time: remote - 50h, flashing - 150h.