GRACE actuators (IMAGE) Istituto Italiano di Tecnologia - IIT Caption Each GRACE actuator can expand, extend and contract simply by means of its geometric shape, resembling a spindle with pleats, comprising a single unit that can be 3D printed and manufactured using different materials and in different sizes Credit IIT-Istituto Italiano di Tecnologia Usage Restrictions use with appropriate credits and caption License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.