The Nikon Z5, Z6, Z7, Z8 & Z9 require a magnetic mounting plate to securely hold our magnetic clip-in filters. With this magnetic mounting plate you can easily convert your Nikon mirrorless camera to be compatible with our magnetic clip-in filters. Please note: This is only required for the following camera bodies: Z5, Z6, Z7, Z8 & Z9. All other Z series Nikon bodies have a back plate compatible with our Nikon Clip-In filters alone. The Nikon mag mount comes with a clear PVC tool with magnets to install the sticky magnetic pads into place in the correct position. Please ensure that the stick pads are positioned evenly on either side of the mounting plate prior to installation. Please see our video here for detailed instructions on the installation process.