It includes the Rear Blinker with all its functionalities:
Directional turning indicators
100lm automatic brake light
30lm Rear red light
Wireless and adjustable remote control
Rechargeable battery (20h of use)
Does it fit my bike?
The saddle mount is fixed just right under the saddle, and can be fixed in almost every kind of saddle.
The rack mount is NOT included in this product. If you have a rack or a basket on your bike, check the "Rack/basket mount" product. You may prefer this kind of mount to fix Blinkers on your bike.