Check the listing for details. 4 Pack 5 Inch Stem Caster Swivel Black Polyurethane Heavy Duty Caster Wheels. Condition: New. Listed at 27.99 USD. ROTATE 360 DEGREES: Smooth and Silent and Sturdy. Capacity: 350lbs each polyurethane caster wheel. STEM SIZE: 3/8" (9.5mm) threaded stem width and 1.2" (30mm) threaded stem length. CASTER WHEEL SIZE: Caster Wheel Diameter: 5" (127mm). Caster Wheel Width: 1.25" (32mm). Overall Height: 6" (152mm). Caster Wheel Color: Black. Ball bearings: Double ball bearings. Capacity: 350lbs each polyurethane caster wheel. FLEXIBILITY AND SAFTEY: Stem Caster Wheels swivel rotate 360 degrees making them the go-to solution for transporting commercial and residential equipment in a smooth and reliable manner. QUALITY AND DURABILITY: Made with Polyurethane for sturdiness and durability. Polyurethane makes casters resistant to most chemicals, oils, acids, grease, and water for a long lifespan. SPECIFICATION Rotate 360 degrees No Brake Wheels Smooth and Silent and Sturdy Capacity: 350lbs each caster wheel Threaded Stem Width: 3/8" (9.5mm) Threaded Stem Length: 1.2" (30mm) Overall Height: 6" (152mm) Caster Wheel Diameter: 5" (127mm) Caster Wheel Width: 1.25" (32mm) Caster Wheel Material: Polyurethane Caster Wheel Color: Black Ball bearings: Double ball bearings PACKAGE INCLUDES 4 x Stem Caster Wheels (5" No Brake)