these are truely awful. even for the cheap price of 1.49. I had to force the thing on my orabl b toothbrush and then couldnt get it off. the pastic is cheap and nasty, the bristel are too soft. it feels like a toy as opposed to a brush. I doubt very much the General Dental Council will endorse them. you'd be better brushing your teeth with your finger whilst sucking a tictac.