New old stock - steel and cast iron caster wheels. As new hardware, with age, but no use. These are very heavy duty, with riveted construction. These are antique, but nothing delicate here! These are workhorses, rated to carry very heavy loads. Four holes to attach to whatever project your heart desires! Available individually. These are not reproductions in weak modern metal from questionable sources, these are true vintage hardware. Available individually, price per each. Measurements: 3 inch diameter wheel x 1.25 inches wide, sits 3 5/8 inches tall.