Features: brand new and high quality Heat treatment, quenching and hardening, strong tensile force. 3-layer electroplating, anti-rust, high abrasion resistance. The chain speed change is flexible and fast, the force is even, there is no disconnection, no noise, and the operation is smooth. Exquisite independent box, protect the product from being squeezed. The waist guide angle design, the tooth tip and the chain piece quickly occlude, there is no need to worry about the car falling off the chain in a severe impact, and the stability and safety are greatly improved. The strong chain shaft fit improves the wear resistance and can withstand strong pedaling. The chain piece has tensile and torsional strength, and the sand is easier to remove and reduce wear. Specifications: Material: Steel Color: Silver Type: 10 Speed/11 Speed/678 Speed/9 Speed Number of Links: 116 Links Shaft Length: About 7.1mm Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Bike Chain Set