Made from Monocrystalline Alumina.Unique ceramic material for unmatched aesthetics.Lowest profile and rounded top shape for unmatched comfort.Rounded entry and exit of slot for lowest friction.15-degree downdraft on tie wings for safe ligation.World’s proven mechanical bonding base for excellent bonding strength and easy de-bonding.45% less friction compared to other clear brackets.Round slot base to enforce wing strength.A mushroom base for superior mechanical lock.