1. The upgrade parts are made of aluminum material, parts processed by CNC 3D machine tool are very precise , by adopting whole shaped technology, the products have the characteristic of high intensity and durability.

2. The aluminum wheels' hexagonal connector are made of 7075 aluminum, the hex size: 12mm.

3. The aluminum wheels are easy to assemble without sticking glue.

4. The item weigh 235.2 grams.