Thank you for coming to our shop, I hope it is to your satisfaction Item Name: Bicycle Chainring Features: Anti-shake, Strong Rigidity, High Hardness Material : Aluminum Alloy Size Details: 32T: Outer Diameter: 13.5cm/5.31" (Approx.) 34T: Outer Diameter: 14.4cm/5.67" (Approx.) 36T: Outer Diameter: 15.2cm/5.98" (Approx.) 38T: Outer Diameter: 16cm/6.3" (Approx.) Specifications: There are four specifications for you to choose from: 32T, 34T, 36T, 38T. With the anti-drop and anti-shake feature, it is very reliable and safe to use. Due to the strong rigidity and high hardness, it is very sturdy and durable. Made of aluminum alloy material, it is very durable to use. It is suitable for mountain bike, road bike, cycling, bicycle and so on. The 96BCD disc-shaped single-disc system eliminates the need to install a front derailleur, a large left-finger dial, and some cables. It features with the four different specifications that makes you choose the most suitable one according to your needs. Because of its professional and exquisite workmanship, it has a stable structure. Kindly Remind: Due to light and display, there may be slight differences between the picture and the actual color of the product. The color is subject to the goods received. In addition, please allow slight size difference due to manual measurement. High quality, assured choice is guaranteed Package Includes: 1 x Bicycle Chainring