brand new and high quality Features: T6 heat-treated high-strength aluminum alloy material is light and strong, not easy to bend and deform. Unique inclination angle and mud discharge oblique mouth reduce weight. CNC high-speed engraving and hard oxidation treatment make the chainring is beautiful. A variety of color options to match different needs. The design of positive and negative teeth, one thick and one thin, reduces the space between the chain and the chainring, and can be closer to the chain card, which greatly prevents the shaking of the chain caused by the speed change. Bike Chain Ring only, other accessories demo in the picture is not included! Specifications: Material: Aluminum Alloy Optional Size: 30T, 32T, 34T, 36T, 38T 30T Size: app.127mm/5in 32T Size: app.136mm/5.35in 34T Size: app.144mm/5.67in 36T Size: app.152mm/5.98in 38T Size: app.160mm/6.30in Optional Color: 30T black, 30T red, 32T black, 32T blue, 32T gold, 32T green, 32T red, 34T black, 34T blue, 34T gold, 34T green, 34T red, 36T black, 36T blue, 36T gold, 36T green, 36T red, 38T black, 38T red Models: 30T, 32T, 34T, 36T, 38T Quantity: 1 Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Bike Chain Ring