This is a pair of 6x10mm Sealed Ball Bearings from Dromida.

FEATURES: Sealed against dirt and grit for long life
          Used in Dromida vehicles, may also be used in any application
            requiring this size ball bearing

INCLUDES: Two 6x10mm Sealed Ball Bearings

SPECS:    Outer Diameter: 10mm
          Inner Diameter: 6mm
          Thickness: 3mm