10 Bearings YoYo Ball Bearings for ProYo and Duncan YoYos, Bearings are made of Chrome Steel and can rotate up to 71000 rpm, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.

• Item: Double Shielded Ball Bearings
• Fits: ProYo & Duncan YoYos
• Type: Deep groove ball bearings
• Closures: 2 Metal Shields
• Lubrication: Self Lubricated (Grease)
• Quantity: 10 Bearings
• Packing: 10 bearings in 1 plastic tube