ALUMINUM-MAGNESIUM ALLOY: Our scooters are made of high-quality aluminum-magnesium alloy materials, which are not only lightweight, but also rust-proof and wear-resistant, and can be used for a long time. INTEGRATED DESIGN: The scooter uses a unique integrated design, which reduces friction, makes the scooter faster, saves effort and provides great playability. LARGE LOADING CAPACITY: The scooter has a strong material and a great bearing capacity without affecting the speed when sliding. SENSITIVE: The pedals of this scooter are sensitive and flexible, making you fall in love with skateboarding! Strong & Durable: This skateboard tuck is wear resistant, strong weight capacity, durable, featured by high resilience and flexible steering. Easy to Install: Simple installation and widely used. Functional Skateboard Accessory: Can be used as a good modification part or replacement truck for your skateboard, thus improving the service life of your skateboard. Better Using Experience: Brings excellent using experience, also helps users to better enjoy the pleasure of skateboarding.Colour: blackMaterial: aluminum alloy. The measurement allowed error is +/- 1-3cm.