PERFECT CASTER ROLLER FOR ANY DIY PROJECT: Wheel tread is non-marking, and smooth rolling, while being highly resistant to oil, grease, and water. MANY USES: Can be used with industrial equipment, furniture, storage racks and mobile workstations. MEASUREMENTS: 3/4" Roller Bearing with 1/2" ID Bushing and Zerk Axle. Top Plate: 4" by 4 1/2" Overall Height: 6-1/2". CAPACITY: Supports 1,000 lbs each, 4,000 lbs total support. FAMILY OWNED BUSINESS: Creative Industrial Sales has been in business for over 30 years, we are a family owned business in America that supplies to all OEMs. Trust us to supply your projects with quality casters. Size: 5" x 2" Color: Black Style: Caster Condition: New Feature: 3/4" Roller Bearing with 1/2" ID Bushing and Zerk Axle Type: Swivel Caster w/ Top Lock Brake Bearing: Roller Bearing Top Plate: 4" by 4 1/2" Overall Height: 6-1/2" Material: Phenolic Capacity: 1000 lbs Quantity: 1 - Set of 4 Part Number: 505PHB Installation Hardware: Not Included