1. The exterior is made of high-quality Oxford cloth materials, which has a certain rainproof effect. 2. The luggage zipper is made of high-grade anti-rust chain, which has a certain waterproof effect, and is flat and free of jams. 3. There is a Nylon Sticker on the back of the bag to fix it on the rear of the bicycle for easy disassembly. 4. The bag is equipped with an outlet wire hole to facilitate the connection of the battery or the controller. Name: Electric Bicycle Battery Bag Type: Rack Pack/Bag Colour: black Material: Oxford cloth Size: 45 x 15 x 9cm Package Contents: 1 x Battery Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.