Sealed Black Rubber Ball Bearings – 12×21×5mm Dimensions (2-Pack)

Description

Pair of 12x21x5 mm black rubber seal ball bearings. A step above blue-seal bearings, black-seal bearings offer an even tighter seal for ultimate protection and less maintenance in dirty environments.

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Quality Ball Bearings, Black Rubber Sealed, 12X21x5mm (2) for your collection.