BK Resources 4SBR-1RA-GR Swivel Caster 1" Expanding Stem 4" Gray Rubber Wheel

BK Resources, 4SBR-1RA-GR, Swivel Caster, 1" expanding stem, 4" gray rubber wheel, resistant to oil, grease, water, and most solvents, double ball bearing, operational temp range -45º to 180ºF, zinc plated steel