Richelieu F25622 Tru Guard 4 Inch Thermoplastic Rubber On Polypropylene Swivel Plate Caster With Brake

400 series, 4 inch, thermoplastic rubber, swivel plate caster with brake, 250 pound load capacity, plate size of holes 1.75 inch by 2.90 inch, gray thermoplastic rubber treads on black polypropylene hubs, offers a soft cushioned ride and are quiet, excellent flat spot resistance and is resistant to a broad range of chemicals, acids, solvents and detergents, non-marking, performs well in wet and corrosive conditions, very good floor protection and impact resistance, temperature range 180 and degree. Fahrenheit to -40 and degree. Fahrenheit, durometer 80a + -5,