This is a set of 3 point-concentrated toothbrushes. (Also known as a one-tuft brush) These are medium bristles. This is a set of 4 small toothbrushes. These are medium-soft bristles. Point-concentrated toothbrushes are sold at dental clinics for around 300 yen each. They can reach the back teeth and other small areas, making them easy to brush with. Using a point-concentrated toothbrush after regular brushing will remove more dirt and leave your mouth feeling fresh. Brand new and unopened. Price is not negotiable. The number of items can be changed. If you purchase point-concentrated toothbrushes, small toothbrushes, interdental brushes (various sizes), and dental floss together, we will offer a discount, so please feel free to inquire. Please comment if you have any questions or would like more details.