Twin Tech casters are ideal for hospital beds and ultrasonic equipment. The twin wheel design provides improved turning capabilities. Precision bearings in wheels offer optimal rolling motion. Caster stems meet industry standards to integrate with existing central locking brake systems. The central locking mechanism is factory-set and maintenance-free for the life of the caster. Med-Ultra casters meet ISO Standard 22882: 2004 Casters & Wheels – Requirements for Casters for Hospital Beds.