Interdental brushes to support interdental cleaning, convenient with 4 pieces per pack. I am selling these because I used one and the size didn't fit. Out of 3 boxes of 4, one box has 3 brushes. - Brand: LION - Product Name: DENT.EX Interdental Brush S - Quantity: 4 pieces x 3 boxes (one box contains 3 pieces) - Purpose: Interdental care Thank you for viewing. Although new and unused, please understand that these have been stored at home. We appreciate your understanding of simple packaging when purchasing.