I accidentally bought this, so it's new and unopened. Panasonic Doltz Replacement Brush EW 0800-K Extra Fine Bristle Brush Compact For Sonic Vibration Toothbrush Replacement Brush 2-piece set x 2 Compatible models: EW1000 1011～1013 1021～1024 1031～1038 1040 1931 EW-CDL2 CDP33～35 52～55 DA21 41 43～45 51 52 DL11 12 21～23 32 34～37 43 53～57 DP33～35 51～55 DT51 52 LA20 25 30 If used with the following ion types, the ion effect will not be obtained. EW1044～1046 1044P～1046P EW-DE20 21 24 25 40～45 54 55 TDEF4 ・Please refrain from price negotiations. ・Free shipping / Anonymous delivery #Doltz #ReplacementBrush #Panasonic #EW0800