RS PRO RIDERS™ Si3N4 HYBRID CERAMIC/STAINLESS STEEL RACERS. THESE ARE STANDARD SIZE 608 BEARINGS. PHOTOS ARE OF ACTUAL BEARINGS. N.B. - BEARINGS HAVE DUST SHIELDS TO ONE SIDE & THAT WE REMOVED A SHIELD FOR THE PICTURE TO DISPLAY THE CERAMIC/STAINLESS STEEL BALLS.
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