Suitable occasion: teaching whiteboard pointer for traditional blackboard, electric whiteboard, apply to teacher teaching, conference training, conference sand table, sand table speech, teaching, outdoor activities, and so on. Size: retractable pointer stick fully extends out to approx. 39 inches, folded length is 8.3 inches, grip diameter is approx. 0.47 inch, sturdy when fully opened, not shaky. Combined configuration: teaching pointer for classroom package with a replaceable felt contact head, can avoid the damage to the touch screen and electronic whiteboard, but please note that this pointer doesn't support the writing enter. Design: telescopic teachers pointer have comfortable non-slip frosted handle,telescopic and easy to carry and store, 6 section telescopic pole design, comprises the handle position. Quantity: 4 pieces retractable pointer with lanyards and 6 pieces felt nibs, telescopic electric whiteboard teaching pointer and guide flagpole.