PB Products X-Stiff Aligners Long Shank #4-1

These extra stiff and hard Long Shank Aligners are designed for medium-long and long hook shanks. This is the short version of the Aligner for a long shank. The X-Stiff Aligners are the strongest aligners available on the market. We offer two sizes: for hook sizes 1 to 4 and for hook sizes 4 to 8.