Usage Tips:Our pointer is a professional telescopic electronic whiteboard teaching pointer, which can be used on electronic whiteboard, traditional blackboard and large display screen. The telescopic pointer is made of stainless steel rod, special frosted rubber handle and white soft mushroom felt pen tip. The handle is comfortable and non-slip,the soft felt head will not damage the screen and whiteboard, the pointer is rust proof and . The extension length of the pointer is 99cm / 39 inches, the contraction length is 20cm / 7.9 inches, and the handle length is 12cm / 4.7 inches. 7 Section Shaft Design: Each section of converge closely, stable and no shaking, you can flexibly adjust the length of you need. Suitable for traditional blackboard, electric whiteboard, apply to teacher teaching, conference training, conference sand table, sand table speech, teaching, outdoor activities. Size: Adjustable 7.9in-39.4in Colour: black Material: stainless steel + sponge Package Contents: 2 * Retractable pointer stick for classroom Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.