[High Quality]:-The screws are made of industrial hardened Metal, strong as quality, to use,Replacement Security Screws have been electroplated with Zinc to resist and rusting. [Compatibility]: These video doorbell security screws compatible with video doorbell,video doorbell 2,video doorbell pro. [Easy to Replace]: Unscrew the old security screws at the bottom of the faceplate, and then use the screwdriver to insert the tip into the new security screws to tighten them. [Use For]:-The video doorbell kit can be used to remove the video doorbell for battery replacement, charging and replacement, and Wifi password reset access., Manufacturer: Mcnhbdgg