Protect Metal Bracket

The price is for one Case Features: stainless steel metal 0.002mm precise error , compare 0.02mm with milling technology made Low friction , low Nickel Titanium (less than 4% ) The best of all, this new series brackets are made with One Piece-Construction, but 80 mesh pad is integrated, just like 3M Victory series. Bonding test strength is 12-15 KG , as strong as any brackets in the world. 100% preventing a loose pad or even a loose bracket from the teeth. Fine polishing , nice looking presentation. Origin: China