Adjustable Head Bracket Height Gauge, helps you to accurately measure height of bracket on tooth from the incisal edge. A sturdy stainless steel instrument with positions for four bracket height dimensions; 3.5mm, 4.0mm, 4.5mm and 5.0mm from the occlusal surface. Can be adjusted to facilitate easy use on anterior, cuspid and bicuspid brackets as both ends have a hinge that allows the instrument to be angled 90°. - Gauge has 3.5mm, 4.0mm, 4.5mm, and 5.0mm. *For use in .018 and .022 brackets. **For further product information, please contact Chat Support**