Hodge Products 90062SPH 6 x 2 Phenolic Swivel Caster

Phenolic casters are made from macerated canvas mixed with phenolic resin, and molded under high pressure and temperature. Its hardness is comparable to polished maple flooring. Phenolic caster wheels are recommended for smooth concrete and can be used for storage (standing) loads without permanent set. Withstands temperature range of -50 degrees to 250 degrees fahrenheit. Approximately 920 pound capacity each.