Features1Made of 7075 aluminum alloy,lightweight and durable. 2Easy to install on your bikes and bring cool color for your bike. 3Easy to install the bolts on your bike with 5mm inner hexagon spanner(not included). 4Fit for universal single chainring/chainwheel used. 5Suitable for most of mountain bikes and road bikes.SpecificationFeatures:Made of 7075 aluminum alloy,lightweight and durable.Easy to install on your bikes and bring cool color for your bike.Easy to install the bolts on your bike with 5mm inner hexagon spanner(not included).Fit for universal single chainring/chainwheel used.Suitable for most of mountain bikes and road bikes.Specification:Color: Black/Red/Blue/Green/Purple/Gold/Silver/Pink (optional)Material: 7075 aluminum alloyWeight: Approx 1.5g/0.05oz for eachPackage weight: Approx. 15g/0.5ozPackage List:5* Chainring BoltsNOTE: Please ensure the size for correct fit.Details please see the size picture.Package List5* Chainring BoltsNOTE: Please ensure the size for correct fit.Details please see the size picture.