FSBT-1 1/2 CS/SS Ball Transfer 1-1/2 Main Ball Ball Transfer UnitsFSBT 1 1 2 CS SS Ball Transfer Unit 1 1 2" Main Ball Proudly made in the USA FSBT 1 1 2 CS SS Ball Transfer Unit, the main ball is 1 1 2" Inch, FSBT 1 1 2 CS SS Can be recessed into the surface of the application forming a smooth and multi directional rolling surface, Unit available with carbon steel balls or stainless steel balls to provide corrosion resistance. FSBT 1 1 2 CS SS Ball Bearing Ball Transfer unit Ball Material: Stainless Housing