Imagine your office chair has no wheel caster, you would be carrying it right and left, install 5inch-Lock-Caster-006 instead. This caster is rolled on a wheel that has 125mm diameter/4.921" inch inches. The thickness of the wheel is 45mm or 1.772" inch. The caster dimensions heightwise is 164mm/6.457" inch. Top Plate is the method of installing the caster to your equipment, the dimensions are 115mm x 110mm x 6mm with the holes distance of 72mm x 85mm. Rolling with a wheel core material of Polypropylene and a Polypropylene tire rolled over Double ball beaing. Bearing in mind that every caster wheel has the load capacity of 1543 lb with a Side Locking type. Last and not least the temperature range = -40 to 180 F. Enjoy our 5inch-Lock-Caster-006, we wish all the best in your project.