Model No: SMR52C-2RS Hybrid Ceramic Bearing 2x5x2.5mm Fishing Reels Ball Bearings ABEC-7 Seals: ZZ metal shield & 2RS Orange Rubber Seals Diameter: 2x5x2.5mm Material: 440C stainless steel Races + Si3N4 Ceramic Balls Precision: ABEC-7 grade Lubrication: Oil or Dry