Set for tests and trials of sizes that fit each person's dentition. After selecting the size or usually the appropriate sizes for each, inevitably the rest are useless. However, I recommend it to prevent a wrong size purchase, since the mentioned millimeters in the various colors refer only to the cross-section of the wire used each time. Future orders will be based on the colors chosen.

Test test for everyone's dental alignment. Once you discover which sizes fit each individual, the rest are useless

I have been using the product for a year now and I am very satisfied with its effectiveness. It is user-friendly and functional. I highly recommend it