Features:

3D shell, more sci-fi and shock resistance when dropped
Rainproof with waterproof zip pocket
Reflective and lightweight hooks make it safer at night
Patented design, more suitable for bicycles

Above the product, you can hang the tail light
The installation position of the tail bag happens to be a good place for the taillights, so I gave it
A rubber fixing strap has been added for easy taillight installation.