Stainless Steel ABEC-5 Ball Bearings With Ceramic Balls 1/8" x 3/8" x 9/64" Inch Lot of 10 Bearings 10 Stainless Steel Ball Bearings with Ceramic Balls ABEC-5 quality, this is a popular size that could be used in many fishing reels or any application that uses this size 1/8" x 3/8" x 9/64". Bearings are made of Stainless Steel, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Ceramic Balls are the highest standard of balls that can make your bearings live at least 5 times more than any other bearings.