Each Box has 5 burs of the same type, so 5pcs = 1 Boxes.
We only have 42 types of BURS as the following shows. No other types.
For Your Attention:
If no message left about the burs type within 24 hours, the most popular models will be shipped, thank you!
FDA for Handpiece: 510(K) Number: K181691, Regulation Number: 872.4200, Classification Product Code: EFB, Subsequent Product Code: EGS
FDA for Scaler: 510(K) Number: K163414, Regulation Number: 872.4850, Product Code: ELC