WHEEL-SMOOTH, 13X5X6, YELLOW, FP 12" x12" x5.75", A & I Products, Mfr#: A-B1FP123

WHEEL-SMOOTH, 13X5X6, YELLOW, FP, Center Hole: 5/8", Hub: 5-5/8", Centered Hub Type, Tread Pattern: Smooth, Bearing Type: Precision Ball, Style: Caster Wheel, Wheel Color: Yellow, Notes: Fits Z-Traks, Notes 2: 5/8" Bearing. Use B1JD57 for replacement bearings, Notes 3: Use B1WL58 for Pneumatic Equivalent