BK Resources 4SBR-3RA-GR Swivel Caster 1-1/2" Expanding Stem 4" Gray Rubber Wheel

BK Resources, 4SBR-3RA-GR, Swivel Caster, 1-1/2" expanding stem, 4" gray rubber wheel, 250 lb. capacity, fits 1-1/2"W OD tubing, resistant to oil, grease, water, most solvents, double ball bearing, operational temp range -45º to 180ºF, zinc plated steel