These high-quality ball bearings provide replacement parts for your kit supplied items.Features:Premium ball-raced bearings for ultra-smooth operation in all conditions - Precision manufactured for fast and easy fit and consistent servicing - Manufactured to consistent tolerance for safe and secure assembly - Double protective shields to provide added durability  SPECIFICATIONS: Inside diameter: 12mm Outside diameter: 24mm Thickness: 6mmIncludes:2 x Ball Bearing 12 x 24 x 6mm