With self-adhesive design, it is easy for you to install and remove without leaving any trace. Featuring anti-spy and dustproof, it can protect your privacy and prevent the webcam from dirt and dust. It is made of high-quality ABS material, which is lightweight and dirt-resistant. It is designed only 0.7mm thin, which will not interfere with closing your laptop. Webcam cover can be opened or closed with just one simple finger movement. You can easily tear off the back protection film and then place it around the lens. The inner diameter of the small webcam cover is 19mm. The inner diameter of the large webcam cover is 21mm. The length of the small webcam cover is 27mm, the width is 23mm and the height is 6m. The length of the large webcam cover is 29mm, the width is 28mm and the height is 7m. It is suitable for Logitech HD-compatible Pro webcam C920, for C922, for C930e. It fits on most smartphones, tablets, desktops, laptop, and computers. It can cover your webcam when not in use, and prevent web hackers from spying on you. It is perfect to provide privacy and security to individuals, groups, organizations, companies and governments. Item Name: USB Webcam Cover Material: ABS Color: Black Style: Small, Large (Optional) Features: Universal, Anti-spy, Dustproof Size Details: Small Webcam Cover Diameter: 1.9cm/0.75" (Approx.) Large Webcam Cover Diameter: 2.1cm/0.83" (Approx.) Small Webcam Cover Size: 2.7cm x 2.3cm x 0.6cm/1.06" x 0.91" x 0.24" (Approx.) Large Webcam Cover Size: 2.9cm x 2.8cm x 0.7cm/1.14" x 1.1" x 0.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Note that this item is a protective cover, not a webcam. Package Includes: 1 x USB Webcam Cover