Silver - Genuine silver impregnated bristles safeguard your toothbrush from bacteria. This keeps your toothbrush cleaner and safer, which is what you want from a dental tool you put in your mouth every day. Double bristle structure - A combination of long, ultra-thin bristles and short, oval ones ensures you remove plaque much more effectively. The long, fine bristles imitate flossing action and clean plaque in hard-to-reach places like between your teeth and under the gumline, while the short ones take care of the big surfaces of your teeth. Nano-b virtually combines brushing and flossing in one. Rounded-edged bristle tips - Scientifically rounded bristle tips protect the soft tissue of your mouth from scratches and cuts. This makes Nano-b ideal for people suffering from sensitive or bleeding gums. Smaller head size - A toothbrush should be able to effectively clean all of your teeth, not just the easy-to-reach ones. Hence, we've made the head of our brush smaller and nimble enough to reach and clean your back teeth just as easily. Beautiful crystal design - Nano-b brushes are clean, smooth and transparent. They come in a range of beautiful crystal colours which makes brushing a much more pleasant experience. Travel case included - Each Nano-b toothbrush comes in its own handy travel case, ideal for storage and travel. Now it's easy to carry your toothbrush with you whenever you want to. Lasts up to 6 months - Nano-b bristles are more durable and fray much less than standard brushes. Combined with its antibacterial features, this means you can safely use your Nano-b brush for up to 6 months, before getting a new one.