1. Easy to use
2. One-piece design prevents falling off and is not easy to damage
3. Good quality and long service life
4. Helmet, shopping bag, tote bag, briefcase can be hung for carrying some luggage
5. Easy to install and remove
2. One-piece design prevents falling off and is not easy to damage
3. Good quality and long service life
4. Helmet, shopping bag, tote bag, briefcase can be hung for carrying some luggage
5. Easy to install and remove
