Whiteboard Pointer And Lanyards With 6 Pcs\. Extra Felt Nibs For Teachers Features: Color: 4 color Material: stainless steel Extention length: approx.39 inches Constriction length: approx. 8.3 inch Grip diameter: approx. 0.59 inches/1.5 cm Felt head diameter: 0.35 inches/ 0.8 mm Lanyard length: 6.69 inches/17 cm Durable, portable, extendable, retractable. Replaceable felt contact head. Comfortable sponge handle, sturdy when fully opened, not shaky. Suitable for traditional blackboard, electric whiteboard, it will not damage the screen. For or teachers, guides, couch, presenter, professor, docent, er, sales staff, effectively point out key information when presenting or teaching. Package 4 x 39 inches teaching pointer 4 x Lanyard 6 x Spare felt nib Quantity: 4 pieces teaching pointer with felt nibs and 4 pieces lanyards and 6 pieces felt nibs, telescopic electric whiteboard teaching pointer and guide flagpole Design: comfortable non-slip frosted handle,telescopic and easy to carry and store, 6 section telescopic pole design, comprises the handle position Combined configuration: the 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 Size: 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 Suitable occasion: for traditional blackboard, electric whiteboard, apply to teacher teaching, conference training, conference sand table, sand table speech, teaching, outdoor activities, and so on