10 bearings Stainless Steel Ceramic Balls ABEC-5 quality, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.

• Item: 6 x 12 x 4 Ball Bearings
• Type: Deep Groove Ball Bearings
• Material: Stainless Steel
• Balls : Ceramic
• Closures: 2 Metal Shields
• Lubrication: Self Lubricated (Grease)
• Size: 6mm x 12mm x 4mm
• Bearing Inner Diameter: 6mm
• Bearing Outer Diameter: 12mm
• Bearing Width: 4mm
• Quantity: 10 Bearings
• Packing: 10 bearings in One Plastic Tube