Webcam Cover Slider, 3 Pack Ultra Thin Aluminium Web Camera Privacy C Slide for MacBook Pro, iMac, Laptops, Surface Pro,iPhone and Android Smartphones, (3 Pack Silver)

Sharp corners catch on things and the adhesive never held right. It just slid around on my phone, even though I cleaned the phone first.

These are not great, but they do function to cover the webcam. SlIder works and glue has held but barely.They are quite ugly and look to be homemade even though they are not.Should be free or 10 cents each

If using on a smartphone, be warned the cover breaks off (from the base portion) very very easily. It will break off in your pocket.