this is designed to your privacy behind the laptop. When the webcam is not in use just to prevent web hackers from spying on you and your family, providing privacy, security and peace of mind to individuals, groups or any organisations. Measuring only 0.03inches in thickness which not interfere with closing your laptop lid. When you slide the open there is an orange/red letter "C" reminding of the open status of webcam, avoids forgetting to close the webcam after you used it. smooth edges, it adheres with strong double sided tape for easily sticking on different devices, meanwhile can be easily applied and removed from the device without any traces. BROAD COMPATIBILITY - Widely compatible with laptop, computer, , smart phone, , tablet, , , Smart TV and more. It comes with 18 packs including 9 white and 9 black, completely meet your everyday need. This can be opened or closed with just one simple finger movement. It does not interfere with web use or indicator light, and 't damage your device in any way. colour:black & White & Red Material:ABS size:18.5 x 9 x 0.7mm Package Contents: 9 x white caps 9 x black covers 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.