Roller Chain: 35 Roller Chain, 5 Feet, with 2 joints and 1 and a half joints (One connecting link is on the chain). Material: Carbon steel material, long service life, not easy to break and wear. Features: The chain undergoes heat treatment process to improve hardness; Unique polishing process, smooth surface. Advantages: Accurate pitch and more stable usage process. Applications: Applications that the chain will fit: go-karts, scooters, mini bikes