Material : Ceramic Model Number : 688 CE Model Number : 688 CE Bearing Material : Ceramic ZrO2 Ball Material : Ceramic ZrO2 Bearing Sizes : 8X16X5mm Inner Diameter : 8mm Out Diameter : 16 mm Width : 5 mm Lubrication : Free Running Free Grease Bearing Type : Full Ceramic Bearing Application : Fishing Reel Bearing Characteristics : Running Smooth Welcome to Lingfeng Store