HUBERT Blue Polyurethane Expandable Rubber Stem Caster - 5"Dia

This stem caster is grease resistant and safe to use in wet environments. The expandable rubber stem fits both square and round tubing. To compress the rubber, tighten the topmost ring until it fits snuggly in tube, to further tighten with a wrench using the nut under the swivel. The stem caster is constructed from a zinc plated steel is durable for long lasting use. The stem measures 2 3/4"L x 7/8"Dia.