The durable OneRacks® are molded in a single, continuous piece. No assembly required and no detachable pieces. The racks are made of Delrin® fiberglass reinforced POM. They are sturdy and highly resistant to acids, bases, solvents and heat. - Autoclavable. - High chemical and heat resistance (- 40 to + 140 °C). - Stable design for use in water baths. The durable OneRacks® are molded in a single, continuous piece. No assembly required and no detachable pieces. The racks are made of Delrin® fiberglass reinforced POM. They are sturdy and highly resistant to acids, bases, solvents and heat. - Autoclavable. - High chemical and heat resistance (- 40 to + 140 °C). - Stable design for use in water baths.