Material : Ceramic Model Number : MR63 MR74 MR84 MR85 MR95 MR104 MR105 MR106 MR115 Model Number : MR115 CE Bearing Material : Ceramic ZrO2 Ball Material : Ceramic ZrO2 Bearing Sizes : 5X11X4 mm Inner Diameter : 5 mm Out Diameter : 11 mm Width : 4 mm Lubrication : Free Running Free Grease Bearing Type : Full Ceramic Bearing Application : Fishing Reel Bearing Characteristics : Running Smooth Welcome to Lingfeng Store