PB Products X-stiff Aligners Curved #8-4

These Curved Aligners, also available in the X-Stiff version, turn in extremely aggressively. After all, the pivot point is positioned well below the hook point, causing the hook to rotate into the correct position before the point can even prick. These Curved Aligners are also available in two sizes: for hooks in sizes 1 to 4 and for hooks in sizes 4 to 8. The latter also fits many size 10 hooks.