Shipping via Eco-Mercari-Bin Only Bag for bicycle handlebars Buckle type, the bag part can be removed and carried as a shoulder bag. The top is transparent, and you can put your phone in it for navigation. Wallet, phone, water bottle, towel, light meals, etc. You can go out with just this one. The bottom of the bag is hard plastic and is quite sturdy. The left and right screws were different from the time of purchase. No problem if you have a hex wrench and a Phillips screwdriver.