4 pcs (1x4) E-Cron® brush. Oral B Pulsonic (SR32-4) replacement. Fully compatible with the following models of electric toothbrushes Oral-B: Pulsonic Slim, Pulsonic and Pulsonic Smart Series.
Yes I admit, I wanted in relation to the award-intensive (overpriced?) Original bust heads to save some money when I ordered this expensive alternative. But now I know: I would not do it again, because in material of the bristles and in the processin