Oral-B Compatible Products: FlexiSoft and Basic Brush, 4 pieces Shipped via regular mail. This is a set of 4 toothbrush replacement heads x 1 set. New Braun Oral-B EB-17-4 Oral B Compatible with almost all Braun Oral-B electric toothbrushes. (Some models like CrossAction Power may not be compatible.) A long-selling product, you'll definitely want to repurchase it once you try it! The head is one size smaller than the current EB20, making it easier to brush your molars. Replacement for BRAUN Oral-B 【Compatible Models】 D345355X, D295354X, D325365X, D275365X, D205353, D205142N, D165131U, D165231 D12013, D12023WE, DB4510NE, D12023W DB4510N, D255364X, D255263 D195453X, D195352, D195231, D255264 D255163, D18565, D17511u, D12013E D2013WE, D4510E, D305364X, DB4510E, etc. Can also be used with Oral-B rotating electric toothbrushes other than the above. #ReplacementBrush #Toothbrush #ElectricToothbrush ※This is a non-branded, overseas product. We inspect the products, but due to being made overseas, there may be some minor stains, scratches, or imperfections in the manufacturing. Please refrain from purchasing if you are sensitive to such issues. Thank you for your understanding. Braun