Bristle is not soft. It is more of a medium-hard. It has a sharp edge at the bristle so it is good for cleaning at those side of the tooth, however, has to be very gentle because it is not soft to prevent bleeding especially senior dog that having gum and tooth decay problems. Bought it because it is eco-friendly. Hopefully an improvement on the bristle for the senior dog.Please visit my page by clicking my name above HAPPY and you will find the code to use.刷毛不軟,但是都是可分解的材質,不傷害環境。按我的名字Happy去我的網頁就可以看到我的優惠碼可以優惠用在訂購哦。謝謝。