- Coupling element for RPE screws. - Eyelet for direct coupling between tomas®-pin with hyrax® click or hyrax® with two supports for easier placement on working model. - For use with hybrid RPE appliance or skeletal RPE appliance. - Inner ø eyelettop 3.0 mm. - Bottom 2.3 mm. - Outer ø eyelet5.0 mm. - Thickness eyelet1.5 mm. **For further product information , please contact Chat Support**