Toothbrush-demonstration device and system

The invention discloses a toothbrush-demonstration device and a system thereof. The device has a main body and comprising a plurality of toothbrush holders, each of the toothbrush holders being structured and configured to accept and removably secure therein a single toothbrush in a fixed position, the toothbrush comprising a handle and a head including a plurality of cleaning elements, wherein a plurality of toothbrushes can be securely mounted substantially parallel to one another in the plurality of toothbrush holders for a simultaneous movement with the device relative to a test surface. The system includes the device, two toothbrushes being compared, and a test surface. 本发明公开了种牙刷展示装置和系统。该装置具有主体并且包括多个牙刷保持件，牙刷保持件中的每个牙刷保持件被结构化并被构造成将单个牙刷接纳并可拆卸地固定在牙刷保持件中处于固定位置，牙刷包括柄部以及包括多个清洁元件的头部，其中多个牙刷能够基本上平行于彼此紧固地安装在多个牙刷保持件中以用于与装置相对于测试表面同时运动。系统包括该装置、被比较的两个牙刷以及测试表面。