1. Precise match - our 6/7/8/9/10/11/12 speed chains are designed for mountain bikes and road bikes, compatible with SHIMANO, CAMPAGNOLO, SRAM and all other brands of speed change systems, 116 links, 1/2"x11/128", suitable for 11/22/33 Speed 2. Smooth and reliable — Intelligent chamfers avoid interference between the chain and sprocket, allowing easy access to each tooth, and its metal-coated side plates provide faster and more accurate shifting as well as excellent reliability, providing an easier, faster, and more powerful riding experience. 3. Wear-resistant and durable — To improve durability, the chain undergoes special heat treatment and metal coating to increase rigidity, flexibility, strength, and reduce wear. 4. Tear-resistant — Bicycle chains are stretch-resistant and can withstand more wear, which means you can extend the mileage of your bicycle chain. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.