Fully assembled and boxed ones available. Features & details ✔Free pedals and comfortable seat include in package. The weight of the mountain bike is 39 Lbs. Recommended rider weight: Within 300 lbs, Recommended rider height: 5.3' - 6.3'. ✔A foldable mountain bike with 26-inch wheels, 17-inch frame, 6-spoke fashion rims, safer and fastness. Adjust the suitable seat height, brakes, and transmission according to the instructions. Note: the handlebar height is fixed. ✔Folding bike with high carbon steel mountain bike dual suspension frame. 21-speed gears, allow you to switch through the gears very quickly with your fingertips, so you can quickly select a gear for every terrain. Enjoy different speed cycling experiences, like a wind chaser. ✔Great Braking System. Front and Rear Disc Brakes and Quick Releases. The front and rear disc brakes and help keep the cyclist safe even at high speeds and down sloppy terrains. You will also have more control over when and where to stop. ✔Easy Assembly. Please identify the pedal L/R logo Correctly install the pedal. Assemble the remaining 5% by yourself. Includes all the tools you need for building and maintaining your own bicycle. Any problem pls feel free to contact us. 26 inch wheel