?? SMALL BRUSH HEAD AND MINIMAL DESIGN - We didn't like what was currently on the market due to a 'wood feel' in the mouth from the heads being too big. Our design has a smaller head to minimise this and the minimal handle design uses less material and energy to produce than others. ?? HEAT TREATED BAMBOO HANDLE - The handle is heat treated to increase its lifetime by providing water resistance. Replace the eco friendly toothbrush every 2-3months as recommended by dentists. ?? BPA FREE NYLON-4 BRISTLES - We use high quality Nylon-4 bristles for our medium toothbrush. Each wood toothbrush has 99% less plastic than a traditional disposable. See our image or description for more info on disposal of the bristles. ?? RECYCLED BIODEGRADABLE PACKAGING - Zero plastic is used in our packaging for our natural toothbrush. IT is made from recycled material and can then be recycled in your cardboard at home creating a closed loop. ?? FAMILY PACK OF 5 WITH DIFFERENT COLOURS - Each eco toothbrush has a different colour to avoid mix-ups at home. Pink, Purple, Beige, Green & Blue mean a colour choice for all.