1.Easy to Use - Attached by double sided adhesive tape, can be paste and removeable. The adhesive slider can be applied and removed from the required device. 2.Thin mechanical , less than 1mm, ultra-thin and light weight 3.Perfect to Privacy - Covers your webcam when not in use, and prevents web hackers from Spying on you 4.Webcam covers by Security Products protect the camera of your laptop, tablet, smartphone or other technical 5.devices from hacker attacks and can be opened or closed with just one simple finger movement. description. material: plastic Colour: Black Length: 17.5mm Width: 9mm Thickness: 0.7mm Package Contents: 3 x Slider 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.