4" Polyurethane Wheel Swivel Swivel Caster With 2-3/8"x3-5/8" Top Plate With Top Lock Brake

Polyurethane Wheel • Polyurethane Wheel Resistant to Acids & Caustics • Temperature Range -45° to 180°F • Double Ball Bearing Raceway for Long Wear and Added Strength • Zinc Plated • 1/2" King Pin • 300 LBS Capacity • Top Lock Brake (DROP SHIPS - NOT AVAILABLE IN STORE)