Specification Brand : uxcell BulletPoint : Angular Contact Bearings BulletPoint1 : [SIZE] - 15mm Diameter Grade G25 Precision Balls BulletPoint2 : [MATERIAL] - Made of Chrome Steel(AISI 52100), features with polishing smooth surface, great wear-resistant and high hardness BulletPoint3 : [FEATURES] - Wide range of applications(maintain industrial equipment or use for family DIY projects); Cost-effective(can repair existing products) BulletPoint4 : [APPLICATIONS] - Maintain product that uses steel balls, such as ball bearings, turntable, drawer slides, wheels, door locks; DIY projects like keychain, rolling ball games, etc. BulletPoint5 : [NOTICE] - They are solid balls WITHOUT magnetic but they can be attracted by magnet Color : One Color ExternallyAssignedProductIdentifier : 7341561576966 ExternallyAssignedProductIdentifier1 : 702105226452 ExternallyAssignedProductIdentifier2 : 0702105226452 ExternallyAssignedProductIdentifier3 : 00702105226452 ItemName : uxcell Precision Balls 15mm Solid Chrome Steel G25 for Ball Bearing Keychain Wheel 5pcs ItemPackageDimensions_Height : 19.05 centimeters ItemPackageDimensions_Length : 0.0254 centimeters ItemPackageDimensions_Width : 12.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : deep-groove-ball-bearings Manufacturer : uxcell Material : Carbon Steel ModelNumber : a19102900ux0443 NumberOfItems : 5 PartNumber : a19102900ux0443 ProductDescription : Bearing is made of Bearing Steel, bearing has 2 shields to protect the bearing from dust or any possible , also bearing is pre-lubricated with grease. Great bearings for skate boards , roller skate , inline wheels , machines , equipment . It is a great economical bearing used in thousands of applications.