Product Description The "Premium Care Series" features a wide head that changes the conventional wisdom about toothbrushes. Once you use it, you'll experience an exceptional brushing feel that makes a difference. The head is approximately 25% thinner than our previous models, allowing for easy maneuverability inside the mouth with its slim design. The densely packed bristles envelop the teeth, and the thin head ensures that the bristle tips reach the back teeth, which are often missed. The ultra-fine bristles with a diameter of φ0.01 mm penetrate periodontal pockets to dislodge plaque, while the flat bristles effectively remove plaque from tooth surfaces. The outer bristles are soft to gently care for the gums, and the inner bristles are hard to thoroughly clean the tooth surfaces and the gum line, featuring double tufting. With a high tuft density, the contact surface area between the teeth and the brush is large, allowing for easy and efficient plaque removal during regular brushing. The wide head has a high number of bristle holes, totaling 48 holes. The 7-row regular head covers the teeth broadly. Bristle hardness is soft. Model number: B-8001S. Information tag number: 81. Bristle material: saturated polyester resin. Main body material