本实用新型的伸缩式黑板刷可以自由调节刷体的高度,对于小学生在擦位于黑板较高部分的粉笔字时十分方便有效。
The height of the brush body can be free to be adjusted, thereby being convenient for pupils to brush the words on the higher part of the blackboard.
主杆上的两个挂钩也可以随意自由调节高度,方便各种挂衣要求;
The height of two hooks on main pole can be flexibly adjusted for different hanging requirements.
主杆上的两个挂钩也可以随意自由调节高度,方便各种挂衣要求;
The height of two hooks on main pole can be flexibly adjusted for different hanging requirements.
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