8 skateboard bearings, they are Oil Preserved deep Groove Radial Ball Bearings with NYLON RETAINER.The Nylon material has low friction and less weight, less friction & less weight means higher speeds. Bearings are made of Chrome Steel,also bearings are OIL preserved.

• Item: 608 Ball Bearings
• Type: Deep groove ball bearings
• Retainer: NYLON (Less friction & less weight = higher speed)
• Lubrication: Oil Preserved
• Inner Diameter: 8mm
• Outer Diameter: 22mm
• Width: 7mm
• Size: 8 x 22 x 7 mm
• Quantity: 8 Bearings
• Packing: 8 bearings in plastic tube
• KOYO: 608
• NSK: 608
• NMB: R-2280
• Equal: 608
• FITS: CORONO 4WD 3DIFF