Krowne 1 5/8" Stem Caster, swivel with brake, 3" diameter, 220 lbs per caster load capacity, grease resistant, raises height of equipment 4" (set of 4)​​‌​‍​​‌‌​‌‌‍​​‌‌​‌‌‍​​‌‌‌​‍​​‌‌‌​‍​‌​​‌​‍​​‌‌‌‌​‍​​‌‌​‌‍​​‌‌​​‍​​‌‌‌‌​‍​‌​​‌​‍​​‌‌‌‌‍​​‌‌‌‌‍​​‌‌​​‍​​‌‌‌‌‍​​‌​‌‌‍​​​‌‌‌‍​​‌‌​​‍​​‌​‌‌‍​​‌‌‌‌​‍​​​‌‌‌‍​​‌‌‌​​‍​​​‌‌​