This old set of metal casters were designed to be screwed to the bottom of furniture legs. Each metal caster is attached to a platform. Between the platform and the wheel’s saddle, is a row of ball bearings that allow the caster to turn or swivel. The set is in good working order.
Each platform measures 1 1/2 inches by 2 inches. There are four holes for screwing the casters to the furniture. The wheels are 1 1/4 inches in diameter. The height of the caster from the platform to the bottom of the wheel is approximately 2 inches.
Screws are not included.