Brand new and high quality.Electric Bicycle 104 BCD Chainring Adapter Spider For TSDZ.Made of high-quality materials, durable and practical.Strict quality control standards to build and test.Fine workmanship and perfect style.Weight including screws: 98gMaximum diameter: 118mmMaximum thickness: 10mmSurface treatment: sandblasted anodizedCrankset installation hole distance: 104mmFixing screw hole diameter: 5x5.2mmInner diameter of dust ring installation: 38mmColour: BlackMaterial: Aluminum AlloyPackage Contents:1 * Chainring adapter1 set * ScrewsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.