SR2-6ZZ Stainless Steel Shielded 1/8x3/8x9/64 inch Bearings Pack of 10SR2 6ZZ Stainless Steel Ball Bearings 1 8" x 3 8" x 9 64" inch Pack of 10 Bearings You are buying a pack of 10 SR2 6ZZ Stainless Steel Ball Bearings, the inner diameter is 1 8", outer diameter is 3 8" and the width is 9 64", this is a popular size that could be used in many applications, 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