1.High precision,Long life 2.Quick delivery,best after-sale 3.OEM service 4.Small order accepted 5.plastic retainer Key Specifications/Special Features:Dimension: Bore:<1mmOuter bore: >1.000mmMaterial: chrome steel, stainless steel, ceramic and plasticType: rubber seal, shield, N, NRLubricant: grease and oilApplications: automobile and machinery needle retainer assembly